Washington’s Divisions Over the Iran War: Victory or Exit?

The Iran war has entered a stage for Washington in which deciding how to end it may prove more difficult than deciding how to start and sustain it. Within the U.S. ruling establishment, the growing divide between Donald Trump and J.D. Vance is increasingly centered on a fundamental question: What exactly is the United States fighting to achieve, and when can it declare that it has accomplished its objective? On one side is an approach that argues military and economic pressure should continue until a strategic outcome is achieved—one that includes preventing Iran from acquiring nuclear weapons but could also extend to changing Tehran’s strategic behavior and reshaping the regional security order. On the other side, the “America First” camp is warning against precisely such an expansion of objectives, fearing that a war that began with a defined purpose could gradually turn into a protracted, costly conflict with no clear endpoint. From this perspective, what is emerging in Washington is not merely a disagreement between two officials, but rather two different conceptions of what constitutes an American victory and what conditions are necessary for an exit from the war.

These two approaches effectively place two different definitions of success against one another. For Trump, simply inflicting military damage on Iran or temporarily rolling back its nuclear program does not necessarily constitute a satisfactory end to the war; military pressure must ultimately produce an agreement that can be presented as a strategic achievement for the United States. In this view, military power has political value when it can alter the behavior of the adversary and generate concessions that go beyond a temporary cessation of hostilities. The “America First” logic, by contrast, begins with a different question: If the primary objective is to prevent Iran from acquiring nuclear weapons, why should the United States pay the price of a prolonged war to pursue broader objectives? This distinction clarifies the central dividing line between the two approaches: one side seeks to extract maximum strategic leverage from military power to alter the regional balance, while the other wants to ensure that this leverage does not trap the United States in a war whose costs ultimately exceed its gains.

The significance of this divide becomes even clearer as the costs of the war extend beyond the battlefield and directly affect the U.S. economy and global energy markets. The continuing crisis in the Strait of Hormuz, disruptions to shipping, and heightened risks to energy supplies have transformed the Iran war from a regional security conflict into an issue with direct consequences for the global economy and the daily lives of American citizens. The longer the crisis continues, the greater the pressure on energy prices, inflation, supply chains, and ultimately American public opinion. For the “America First” camp, therefore, the issue is not simply the cost of weapons and military operations; the central concern is that a foreign war could become a domestic crisis, with its political costs falling directly on the Trump administration. Under such circumstances, even military superiority on the battlefield could become a political liability for Washington if it is accompanied by an energy shock and mounting economic pressure.

The Strait of Hormuz has consequently become one of the most important points connecting America’s military and political calculations. On the one hand, Washington cannot allow Iran to use the waterway as leverage to impose costs on the global economy and on U.S. allies. On the other hand, reopening the strait without securing a political outcome could diminish part of Washington’s leverage over Tehran. The U.S. administration therefore faces a difficult dilemma: continue the pressure to extract greater concessions, or ease the pressure to prevent the war’s costs from escalating. Both options carry costs, and this is precisely what is deepening internal disagreements over the war’s future trajectory.

From this perspective, Vance’s role in negotiations to end the war since June takes on greater significance. His involvement in the negotiating track demonstrated that, alongside efforts to maintain pressure on Iran, the need to find an exit strategy had also been recognized within the U.S. administration. The current divide, therefore, did not emerge suddenly; rather, it became apparent when Washington was forced to address two questions simultaneously: How can pressure on Iran be maintained while preventing the United States from becoming trapped in a war without an end? The more difficult an agreement has become, the more these two imperatives have come into conflict.

The more fundamental issue is the disagreement over what comes “the day after.” If the war’s sole objective is to prevent Iran from acquiring nuclear weapons, a relatively clear endpoint can be envisioned: an agreement establishing the necessary restrictions and creating the conditions for a gradual reduction in military pressure and a return to diplomacy. But if the war’s objectives expand to include changing Iran’s strategic behavior, constraining its missile capabilities, reducing its regional influence, and redesigning the security architecture of the Persian Gulf, then the war can no longer be tied to a limited agreement as its endpoint. Under such circumstances, every military achievement could become a platform for demanding the next one, pushing the war into a cycle from which withdrawal would become increasingly difficult.

This is where the concerns of the “America First” camp become understandable. The experience of America’s prolonged wars in Iraq and Afghanistan remains embedded in the calculations of this faction. Its primary concern is that a war launched with a limited objective could gradually acquire new goals under the influence of battlefield dynamics, pressure from allies, and the costs already incurred. Under such circumstances, any retreat could be portrayed as defeat, while continuing the war would require paying ever-higher costs. The real danger emerges when the end of the war becomes detached from achieving its original objective and instead becomes contingent on accomplishing a growing set of additional goals.

Trump, for his part, faces a serious constraint as well: he cannot launch a major war and then return to the prewar status quo without achieving a result that can be presented as a meaningful accomplishment. Such an outcome could create the perception that U.S. military power failed to produce the expected political result. Therefore, even if the economic and political imperative to end the war grows, the Trump administration will still need an agreement that can be presented as a form of victory. This necessity highlights the gap between “ending the war” and “ending the war successfully.”

Ultimately, the division within the U.S. ruling establishment should be understood as a sign that the war has entered a new phase—one in which the central issue is no longer simply the extent of America’s military capabilities or the damage inflicted on Iran, but rather agreement over the definition of the war’s objective. The more ambiguous that definition becomes, the greater the likelihood that the war’s objectives will expand and its costs will rise. Conversely, the more clearly and narrowly the objective is defined, the greater the possibility of moving toward an agreement. The disagreement between Trump and the “America First” camp is, in reality, a reflection of a broader dilemma in American foreign policy: How can Washington simultaneously preserve an image of power and victory while avoiding entrapment in a war that is fundamentally incompatible with the logic of “America First”?