Three and a half weeks into Operation Epic Fury, the most consequential disagreement in the conflict is not between the United States and Iran. It is between the United States and Israel.

The rupture became visible on March 20, when Israel struck Iran's South Pars gas field without American approval. President Trump stated publicly that the United States "knew nothing about this particular attack." The admission was remarkable. In a joint military campaign, operational surprises between allies are not misunderstandings. They are policy disagreements expressed through action.

The South Pars strike was not an isolated incident. It was the clearest expression of a divergence that has been growing since the campaign began: Washington and Jerusalem entered the same war with different definitions of victory.

Two Wars, One Campaign

The American objective, as articulated by the White House and the Pentagon, is focused and finite: destroy Iran's nuclear enrichment infrastructure, degrade its ballistic missile capability, neutralize its naval threat, and reestablish deterrence. The implied model is what some administration officials have privately called the "Venezuela approach," a reference to the quick, decisive interventions that topple a threat and allow American forces to withdraw. Hit hard, achieve the objective, declare victory, come home.

Israel's objective is broader and longer. Prime Minister Netanyahu has spoken repeatedly about ensuring that Iran "never again" threatens Israeli security. In practice, this means not just destroying the nuclear program but permanently degrading Iran's ability to project power through its proxy network (Hezbollah, Hamas, the Houthis, Iraqi militias), its missile arsenal, and its economic base. The South Pars strike, targeting Iran's largest source of energy export revenue, makes sense only within this more expansive framework.

These objectives are not complementary. They conflict. A short American campaign that destroys nuclear facilities and withdraws leaves Iran's proxy infrastructure largely intact, which is unacceptable to Jerusalem. A prolonged campaign that systematically dismantles Iran's entire military and economic capacity serves Israeli interests but traps the United States in exactly the kind of open-ended commitment that the American public has rejected repeatedly since Iraq.

The Historical Pattern

Coalition wars with divergent objectives have a consistent track record: they either resolve the divergence early or they drift into incoherence.

The 1991 Gulf War succeeded in part because the coalition's objectives were rigidly defined and universally accepted: eject Iraq from Kuwait, restore the Kuwaiti government, stop. President George H.W. Bush resisted pressure to march on Baghdad precisely because expanding the objectives would have fractured the coalition. The war ended in 100 hours with its mission accomplished.

The 2003 Iraq War is the counterexample. The initial invasion had clear military objectives, but the post-invasion mission expanded continuously: regime change became democratization, became counterinsurgency, became nation-building. The objectives shifted because no one had agreed on what victory looked like before the shooting started. The result was two decades of commitment, trillions of dollars, and an outcome that satisfied no one.

The Iran campaign is drifting toward the second model. The initial strikes achieved their primary objectives within days. The nuclear facilities are destroyed. The Iranian navy is gone. The air defense network has been dismantled. By any reasonable measure of the stated American objectives, the mission is substantially complete.

Yet the campaign continues, and it continues in part because Israel's objectives require it to continue. Every additional strike against Iranian economic targets, proxy supply lines, or military facilities that pose no direct threat to the United States extends the war on terms that serve Jerusalem's interests rather than Washington's.

The Ultimatum

Trump's 48-hour ultimatum to Iran to reopen the Strait of Hormuz, issued Saturday night, introduces another variable. The threat to "hit and obliterate" Iran's power plants is coercive escalation of the kind that can work, but only when the adversary has a credible exit ramp.

The problem is that Iran's leadership, three weeks into a war that has killed its supreme leader, destroyed its military infrastructure, and humiliated its armed forces, may not have the domestic political space to comply with an American ultimatum even if it wanted to. Mojtaba Khamenei, the new supreme leader, has staked his legitimacy on defiance. Compliance with an American demand to reopen Hormuz would look like capitulation, and capitulation is not survivable for a revolutionary regime that derives its legitimacy from resistance.

Coercion works when the target values survival more than resistance. The Iranian regime may have reached the point where it calculates that resistance and survival are the same thing, because compliance means the end of the regime's credibility with its own population. If that calculation is correct, the ultimatum will fail, and the United States will face a choice between following through on the threat (escalating further) or backing down (destroying the credibility of future threats).

Neither option serves American interests. Both extend the war.

What Washington Should Do

The United States needs to separate its campaign from Israel's. This does not mean abandoning the alliance or repudiating the joint operation. It means defining American objectives independently of Israeli ones and acting on the distinction.

The American objectives have been largely achieved. The nuclear program is destroyed. The missile threat is degraded. The navy is gone. What remains is the proxy network and the Hormuz closure, and neither of these problems has a military solution that does not require an indefinite commitment.

The proxy networks will reconstitute. They always do. The United States spent twenty years fighting insurgencies in Iraq and Afghanistan and learned that military force can disrupt networks temporarily but cannot eliminate them permanently. Containment, deterrence, and intelligence operations are more effective and less expensive tools for managing proxy threats over the long term.

The Hormuz closure will end when the conflict ends. It will not end through additional bombing. Every strike against Iranian infrastructure gives Tehran more reason to keep the strait closed, because the closure is Iran's last source of leverage. Reopening the strait requires a diplomatic track, not a military one.

The administration entered this conflict with the right instincts: strike hard, strike fast, achieve the objective. It should return to those instincts now. Define the American endstate. Communicate it to Israel. Begin the diplomatic process that produces a ceasefire. And bring the campaign to a close before it becomes the next decade-long war that no one wanted and no one knows how to end.

The American people supported destroying Iran's nuclear program. They did not support fighting Israel's regional war. The distinction matters, and the time to act on it is now.