Dr. Pshtiwan Faraj

The history of American interventionism since the Second World War presents one of the enduring paradoxes of international politics: the United States has repeatedly possessed the material capacity to intervene abroad, yet it has often struggled to translate that capacity into the political outcomes its policymakers originally envisioned. Washington has entered foreign conflicts for humanitarian, security, economic, ideological, and counterterrorism purposes, employing almost every instrument available to a modern great power, from diplomacy and economic sanctions to intelligence operations, military assistance, airpower, and large-scale ground interventions. Some interventions have achieved their immediate objectives. Others have produced outcomes that were radically different from those anticipated at the moment of decision. The central problem is therefore not whether the United States has the power to intervene, but whether American power can reliably produce political outcomes in societies whose histories, institutions, identities, and strategic interests Washington does not fully control.

This distinction between power and political control is essential to understanding the post-1945 history of U.S. foreign policy. American military power can destroy a military formation, remove a government, disrupt a terrorist organization, impose enormous economic costs, or prevent an adversary from achieving an immediate objective. What it cannot automatically do is create legitimacy, reconcile competing political communities, construct functioning institutions, eliminate historical grievances, or determine how local actors will behave once the external power has altered the balance among them. The recurring temptation of interventionism has been to assume that sufficient American resources can compensate for these political uncertainties. The historical record suggests otherwise. Again and again, Washington has discovered that the most difficult part of an intervention begins after the initial military objective has been accomplished.

The Problem of Intervention Begins With the Definition of Success

The first difficulty is conceptual. U.S. interventions are rarely undertaken with a single objective. A mission may begin as an effort to contain an adversary and gradually acquire humanitarian, political, counterterrorism, state-building, and democratization objectives. Once these goals accumulate, the definition of success becomes increasingly difficult. An intervention that prevents an immediate military defeat may be judged successful according to one criterion and unsuccessful according to another. The removal of a dictator may represent military success while simultaneously creating a state-building problem. The destruction of a terrorist organization may achieve a counterterrorism objective while leaving behind the political conditions that allow another organization to emerge. A humanitarian intervention may save lives while failing to establish a durable political settlement.

This problem has appeared repeatedly throughout the history of American interventionism. The United States is often exceptionally effective at achieving discrete operational objectives, particularly when it can apply overwhelming force against a conventional military target. The difficulty emerges when the objective shifts from destroying something to constructing something. Destruction is often measurable. Political transformation is not. A destroyed bridge, aircraft, weapons depot, or command center provides an immediate indicator of military effectiveness. A legitimate political institution, a stable social compact, or a self-sustaining state cannot be produced with comparable certainty or speed.

The result is what might be called the intervention paradox: the United States can possess overwhelming power while remaining strategically uncertain about the political consequences of using it.

Korea and the First Lesson of the Cold War

The Korean War provides one of the earliest examples of this paradox. The United States intervened under the broader logic of containment, seeking to prevent North Korea's invasion from destroying South Korea and altering the balance of power in East Asia. American and allied forces eventually prevented the conquest of the South, but the war did not produce the reunification of Korea under Seoul. Instead, it ended with an armistice and the establishment of a heavily militarized division that continues to shape Northeast Asian security.

Yet Korea should not simply be classified as an American failure. South Korea survived, and over subsequent decades developed into a prosperous democratic state and an important U.S. ally. The intervention therefore achieved a crucial strategic objective even though it failed to accomplish the maximal political objective of reunifying the peninsula. This distinction matters because it demonstrates that intervention can produce outcomes that are neither complete victories nor straightforward defeats. The United States succeeded in preserving a partner state but also acquired a long-term security commitment in a region where the underlying conflict remained unresolved.

Korea thus established a pattern that would recur throughout American foreign policy: the successful defense of an immediate objective can create a permanent strategic obligation. Once American power becomes embedded in a regional security architecture, withdrawal can become more difficult than intervention itself.

Vietnam and the Limits of Military Superiority

Vietnam exposed the problem in a much more devastating form. The United States possessed enormous military superiority, yet its ability to convert that superiority into a sustainable political outcome remained limited. Washington gradually expanded its commitment because previous levels of involvement had failed to produce the desired results. Military escalation therefore became both a response to failure and a mechanism for deepening the intervention.

The underlying difficulty was political. The United States was attempting to preserve a South Vietnamese state whose legitimacy, institutional capacity, and ability to mobilize political support were deeply contested. American military power could destroy enemy units and control territory temporarily, but it could not resolve the underlying political competition. The war consequently became a contest in which Washington repeatedly attempted to solve a political problem through increasingly sophisticated applications of military force.

Vietnam remains important because it illustrates one of the most persistent dangers of interventionism: when an intervention does not produce the desired political outcome, policymakers can become trapped between withdrawal and escalation. Withdrawal appears to concede failure, while escalation promises that victory might still be achievable if only additional resources are committed. This dynamic can transform a limited strategic objective into an open-ended war.

The lesson is not that military power is irrelevant. Rather, military power is most useful when it serves a political strategy that is itself viable. When the political strategy is weak, additional military power can postpone the moment of strategic reckoning without resolving the underlying problem.

Humanitarian Intervention and the Problem of Moral Clarity

The end of the Cold War produced a different environment for American interventionism. With the Soviet Union no longer providing the central organizing framework of U.S. grand strategy, humanitarian considerations became increasingly important in debates about the use of force. Somalia, Bosnia, and Kosovo illustrated the possibilities and limitations of interventions undertaken partly or substantially to prevent human suffering and mass violence.

The moral argument for intervention can be powerful. When civilians are threatened with mass killing, ethnic cleansing, or systematic violence, nonintervention can itself carry a profound political and ethical cost. But moral clarity about the need to act does not necessarily produce strategic clarity about what should happen afterward.

Stopping an atrocity, removing a government, protecting civilians, negotiating a settlement, rebuilding institutions, and creating a stable political order are separate objectives. An intervention can succeed at one while failing at another. The danger arises when policymakers begin with a narrowly defined humanitarian mission but gradually discover that protecting civilians requires influencing the broader political structure that generated the violence.

This creates a recurring tension between limited intervention and expansive responsibility. Once an external power intervenes, local actors may alter their behavior in anticipation of continued external support. The intervening state then becomes partly responsible for consequences that it never originally intended to manage.

Iraq and the Strategic Consequences of Regime Change

The 2003 invasion of Iraq remains one of the clearest examples of the distance between military success and political success. The United States and its allies rapidly defeated Saddam Hussein's conventional military and removed his regime. From a purely operational perspective, the campaign demonstrated overwhelming American military superiority. But the destruction of the existing political order generated a much more complicated strategic environment.

The United States had removed the central authority of the Iraqi state without possessing an equally legitimate and capable replacement. Institutions were weakened or dismantled, political competition intensified, sectarian conflict escalated, and an insurgency emerged. Over time, al-Qaeda in Iraq developed, Iranian influence expanded, and the political and security environment eventually contributed to the emergence of the Islamic State. None of these developments can be reduced to a single American decision, because Iraqi actors, regional governments, Iran, jihadist organizations, and other forces pursued their own interests. But that is precisely the point: intervention changes the environment without giving the intervening power complete control over what follows.

The central lesson of Iraq is therefore not simply that regime change was a mistake. It is that removing an existing political order is fundamentally different from constructing a legitimate replacement. American planners could determine how quickly the Iraqi army was defeated and how Baghdad was occupied. They could not determine how Iraq's political communities would interpret the collapse of the old order, how neighboring states would respond, or how new political and armed organizations would compete for power.

Iraq also demonstrates the importance of unintended consequences. The United States entered Iraq partly in pursuit of security objectives, yet the subsequent instability created new security problems that required further American intervention. The intervention therefore generated a cycle in which the original military operation created conditions that required additional military and political commitments.

Afghanistan and the Expansion of the Mission

Afghanistan provides perhaps the clearest example of mission expansion in the post-9/11 period. The original American objective was relatively focused: destroy al-Qaeda's operational sanctuary and prevent Afghanistan from being used as a base for attacks against the United States. But the intervention gradually developed into a much broader project involving counterinsurgency, governance, institutional development, democratization, and the construction of Afghan security forces capable of independently maintaining the political order.

Each objective represented a significant transformation of the original mission. Counterterrorism required targeting specific organizations and networks. Counterinsurgency required controlling territory and influencing local populations. State-building required institutions. Democratization required political legitimacy. Security-sector development required creating forces capable of surviving without indefinite American military support.

The eventual collapse of the Afghan government in 2021 exposed the difficulty of creating a political order dependent upon extensive external assistance. The United States had spent two decades building institutions, training security forces, and supporting governments, but the durability of those structures proved highly dependent on continued international assistance.

Afghanistan therefore offers one of the most important lessons for contemporary intervention planning: the existence of institutions is not the same as institutional resilience. A government may have ministries, a parliament, an army, police forces, courts, and elections while still lacking the political legitimacy and independent capacity necessary to survive once external support disappears.

Libya and the Morning After Intervention

Libya presents another variation of the same problem. The international intervention that contributed to Muammar Gaddafi's removal was strongly influenced by concerns about civilian protection and the prevention of mass atrocities. The immediate military objective was achieved, but the political consequences were far more difficult to manage.

The collapse of the regime did not automatically generate a functioning political settlement. Instead, Libya experienced fragmentation, militia competition, competing political authorities, foreign intervention, and prolonged institutional weakness. The problem was not simply that the United States or its allies lacked military power. The problem was that military power could not manufacture the political consensus necessary to replace the regime.

Libya consequently reinforces the importance of asking a question that is frequently secondary in debates over intervention: What happens the morning after the military objective has been achieved?

The answer to that question may ultimately matter more than the sophistication of the intervention itself. An intervention that can remove a threat but cannot support a sustainable political settlement may simply transfer the conflict into another form.

Sanctions and the Illusion of Coercive Simplicity

American interventionism is not synonymous with military intervention. Economic sanctions have become one of Washington's most frequently employed instruments of statecraft precisely because they appear to offer a middle ground between diplomacy and war. Sanctions can impose costs without immediately exposing American forces to battlefield risks, and they can be calibrated against individuals, institutions, sectors, or entire economies.

Yet sanctions reveal another limitation of American power: economic pain does not necessarily produce political compliance.

States adapt to sanctions. Governments seek alternative trading partners, develop domestic production, establish new financial mechanisms, manipulate exchange rates, redirect trade, and shift economic burdens onto populations. Sanctions can therefore weaken an economy without changing the strategic calculations of its leadership.

Iran offers a particularly important example. Decades of sanctions have imposed substantial costs, but Tehran has repeatedly demonstrated an ability to adapt while maintaining aspects of its regional strategy. The same broader problem can be seen in other cases where sanctions have produced economic consequences without delivering the political concessions Washington initially sought.

Sanctions can therefore be effective as instruments of pressure without being effective as instruments of coercion. The distinction is crucial. Weakening an adversary is not the same as persuading an adversary to change its behavior.

Military Assistance and the Problem of Partners

Military assistance presents a different challenge. Rather than intervening directly, Washington provides weapons, intelligence, training, logistics, and other capabilities to local partners. This can reduce the costs and risks of direct intervention while allowing the United States to influence the balance of power.

But indirect intervention introduces the problem of agency. Local partners are not simply extensions of American policy. They possess their own political interests, historical grievances, institutional cultures, and strategic objectives. They may use American assistance in ways Washington did not anticipate, or they may pursue objectives that conflict with broader American interests.

This is particularly significant in fragmented political environments where the United States must work simultaneously with governments, military organizations, regional authorities, and non-state actors. Assistance can strengthen a partner, but it can also alter domestic balances of power in ways that produce new conflicts.

The central lesson is therefore that partner capacity cannot substitute for partner political legitimacy. Washington can provide weapons and training, but it cannot outsource the political problem of constructing a stable order.

Intelligence Cannot Eliminate Uncertainty

Intelligence presents another fundamental limitation. Foreign-policy decisions are made under conditions of uncertainty, yet policymakers often demand intelligence assessments that appear more precise than the underlying evidence allows. This creates a persistent danger of confusing analytical confidence with factual certainty.

The problem becomes particularly serious when policymakers develop a preferred theory of an adversary's intentions and subsequently interpret ambiguous evidence through that framework. Intelligence can then become less a mechanism for challenging assumptions than a mechanism for validating them.

The experience of major interventions demonstrates that intelligence failures are not always failures to collect information. Sometimes they are failures of interpretation. Governments may possess enormous quantities of information while misunderstanding the political meaning of that information.

For intervention planning, this suggests that intelligence should not be treated as a mechanism for eliminating uncertainty. It should be treated as a mechanism for managing uncertainty and testing assumptions.

Why American Interventions Produce Unintended Consequences

Across these cases, several patterns become visible. The United States repeatedly encounters the difficulty of understanding local political systems in sufficient depth to predict how intervention will reshape them. Washington often knows what it wants to destroy but has less clarity about what political order should replace it. Military effectiveness can create confidence that is not matched by political understanding, while technological superiority can encourage policymakers to believe that complex conflicts can be controlled through increasingly precise applications of force.

There is also a tendency toward mission expansion. An intervention begins with one objective and acquires additional objectives because the initial intervention has changed the environment. Once the United States becomes invested politically and militarily, withdrawal can become difficult because policymakers fear the consequences of leaving. The intervention consequently develops its own institutional momentum.

This is one of the most important reasons why interventions can become longer and more expensive than originally anticipated. The original decision is often made under the assumption that the United States can control the sequence of events. But once intervention begins, local actors respond, adversaries adapt, allies demand support, and new threats emerge. The intervening power is no longer implementing a plan. It is participating in an evolving political system.

Interventionism and the Cultural Memory of War

The consequences of intervention also extend beyond strategy and military history. War becomes embedded in cultural memory, literature, political identity, and national narratives. This dimension is particularly important because the strategic consequences of intervention may disappear from American political attention long before they disappear from the societies that experienced them.

My own doctoral research at Brunel University London examined the representation of the Iraq War in selected Anglo-American and Iraqi novels, with particular attention to anti-interventionist discourse, political violence, the cultural consciousness of war, and the ways literary representations capture the physical, psychological, and interpersonal consequences of conflict. The thesis argues that literary representations of the Iraq War provide an important means of understanding how political violence becomes embedded in cultural memory and how societies affected by intervention interpret and reconstruct the experience of war.

This perspective complicates conventional strategic analysis. A military intervention may be considered complete once troops withdraw or a formal operation ends, but the cultural consequences of intervention can continue for generations. The societies that experience foreign military power do not necessarily remember the intervention according to the language used by the intervening government. What Washington describes as liberation, stabilization, counterterrorism, or humanitarian protection may be remembered elsewhere as occupation, destruction, humiliation, displacement, or political rupture.

Literature becomes particularly valuable here because it provides access to dimensions of intervention that military statistics and diplomatic documents cannot fully capture. Fiction can represent trauma, memory, displacement, moral ambiguity, civilian experience, and the psychological consequences of violence. These representations subsequently become part of the cultural consciousness through which future generations understand the intervention. In that sense, the political consequences of American intervention can continue long after the operational objectives have disappeared from the strategic agenda.

Technology May Make Intervention Easier—and More Dangerous

The future of interventionism will be shaped by technological change. Artificial intelligence, autonomous systems, drones, cyber capabilities, satellite surveillance, precision weapons, and increasingly sophisticated intelligence architectures may allow the United States to conduct military operations with fewer personnel and potentially lower political costs.

But this creates a paradox.

If intervention becomes cheaper, safer for American forces, and more technologically precise, policymakers may become more willing to use it. The apparent reduction in risk can therefore create a greater willingness to take strategic risks.

Technology can improve targeting, but it cannot create political legitimacy. Artificial intelligence can process enormous quantities of information, but it cannot guarantee that policymakers understand the political meaning of what they are seeing. Autonomous systems can destroy targets without risking human pilots, but destroying targets does not establish a political settlement.

The future of American interventionism may therefore produce an even greater separation between operational precision and strategic uncertainty.

The Real Test Is What Happens After the Strike

The history of American interventionism suggests that the decisive question should not be whether Washington can achieve the initial military objective. It should be whether the intervention creates a political environment capable of sustaining the desired outcome once American resources are reduced.

This requires policymakers to think backward from the end state rather than forward from the initial threat. Before intervention, Washington should identify not merely the enemy it intends to defeat but the political order it expects to emerge afterward. It should determine which local institutions possess sufficient legitimacy to govern, which actors have incentives to cooperate, which regional powers will attempt to influence the outcome, and what resources will be required after the military campaign ends.

Most importantly, policymakers must distinguish between outcomes that are genuinely achievable and outcomes that merely reflect political aspiration.

The history of Vietnam, Iraq, Afghanistan, Libya, and other interventions demonstrates that the United States is exceptionally capable of altering political environments. It is far less capable of determining what those environments ultimately become.

What Should American Policymakers Learn?

The lesson of post-World War II interventionism is not that the United States should never intervene. Such a conclusion would be as simplistic as the interventionism it seeks to reject. There are circumstances in which diplomacy fails, deterrence collapses, humanitarian catastrophe becomes imminent, terrorism presents a direct threat, or an adversary's aggression fundamentally threatens the international order. The United States will continue to possess both the interests and capabilities necessary to intervene.

The more important lesson is that intervention should be treated as a political undertaking rather than merely a military operation. Military power should support a realistic political strategy rather than substitute for one. Economic sanctions should be evaluated according to whether they can alter decision-making rather than simply inflict economic pain. Military assistance should be assessed according to the political behavior and institutional resilience of the recipient. Intelligence should be used to challenge assumptions rather than reinforce them. And every intervention should contain a credible theory of how the desired political order will survive when American involvement decreases.

Above all, Washington needs to recognize that local political actors are not variables that can simply be controlled. They are independent strategic actors with their own interests, identities, fears, ambitions, and memories.

That is why intervention so often collides with reality.

The Enduring Paradox of American Power

The United States remains one of the most powerful states in modern history. Its military capabilities, economic resources, intelligence networks, technological advantages, diplomatic alliances, and global institutional influence give Washington an extraordinary ability to shape international events.

But power has never been the same thing as control.

The history of American interventionism demonstrates that Washington can frequently win battles while struggling to shape the political consequences of those victories. It can destroy regimes without being able to construct legitimate replacements. It can weaken adversaries without changing their strategic preferences. It can impose economic costs without obtaining political concessions. It can build armies without ensuring that they will fight effectively once American support disappears. And it can intervene to prevent one threat while unintentionally creating conditions for another.

The deepest lesson is therefore not that American interventionism is inherently doomed. It is that American power has political limits.

Those limits do not arise simply because the United States lacks sufficient military strength. They arise because international politics is populated by societies and actors that cannot be reduced to military targets, economic indicators, or intelligence assessments. Intervention changes political systems, but it cannot dictate every consequence of that change.

For policymakers, the challenge is therefore to understand not only whether the United States can intervene, but whether it can live with the political consequences of doing so.

That is the collision between American power and political reality.

And it remains one of the central strategic problems of U.S. foreign policy in the twenty-first century.

Read the PhD Research Behind This Analysis

Readers interested in diplomacy, national security, international relations, interventionism, war literature, and U.S. foreign policy can explore my doctoral research at Brunel University London. The thesis, “The Representation of the Iraq War in Selected Anglo-American and Iraqi Novels,” examines how the Iraq War entered literary and cultural consciousness and how fiction represented the political, psychological, social, and human consequences of intervention. Read the full PhD thesis at the Brunel University Research Archive

Dr. Pshtiwan Faraj is the founder of Kurdish Policy Analysis, an independent geopolitical and policy analysis platform focused on Kurdistan, Iraq, Iran, the Middle East, security, energy, and international affairs. He holds a PhD from Brunel University London, where his doctoral research examined the representation of the Iraq War in Anglo-American and Iraqi literature and the relationship between intervention, political violence, and cultural consciousness.

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