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 surfaced on March 20, when Israel struck Iran's South Pars gas field without American knowledge. Trump stated publicly that the U.S. "knew nothing about this particular attack." In a joint military campaign, that kind of surprise is not a miscommunication. It is a policy disagreement expressed through ordnance.

South Pars was not an isolated incident. It was the sharpest expression of a divergence that has been growing since the first night: Washington and Jerusalem entered the same war with different definitions of what winning looks like.

Two Theories of Victory

The American objective, as the White House and Pentagon have articulated it, is focused and finite. Destroy Iran's nuclear enrichment infrastructure. Degrade its ballistic missile capability. Neutralize the naval threat. Reestablish deterrence. Some administration officials have privately called this the "Venezuela approach," a reference to quick, decisive interventions that remove a threat and allow American forces to withdraw. Hit hard, achieve the objective, come home.

Israel's objective is broader and has no natural endpoint. Netanyahu has spoken repeatedly about ensuring that Iran "never again" threatens Israeli security. In practice, this means not merely destroying the nuclear program but permanently degrading Iran's ability to project power through its proxies (Hezbollah, Hamas, the Houthis, Iraqi militias), its missile arsenal, and its economic base. The South Pars strike, targeting Iran's largest revenue source, makes sense only within this more expansive framework.

These two objectives are not complementary. They conflict. A short American campaign that wrecks 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 American voters have rejected since Iraq.

This is the essential tension in every coalition war where the partners want different things from the same fight.

The Historical Pattern

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

The 1991 Gulf War succeeded partly because objectives were rigid and universally accepted: eject Iraq from Kuwait, restore the Kuwaiti government, stop. George H.W. Bush resisted enormous 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 cautionary tale. The invasion had clear military objectives. The aftermath did not. Regime change became democratization, which became counterinsurgency, which became nation-building. The objectives shifted because nobody had agreed on what victory meant before the first shot. The result was two decades of commitment, trillions spent, and an outcome that satisfied no one.

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

Yet the campaign continues, and it continues partly because Israel's objectives require continuation. Every additional strike on Iranian economic targets, proxy supply lines, or military facilities posing no direct threat to the United States extends the war on terms that serve Jerusalem more than Washington.

Coercion and Its Limits

Trump's 48-hour ultimatum to Iran to reopen Hormuz introduces another variable. Threatening to obliterate Iran's power grid is coercive escalation of the kind that can work, but only when the adversary has a credible exit.

The problem: Iran's leadership, three weeks into a war that killed its supreme leader, destroyed its military, and humiliated its armed forces, may not have the domestic space to comply even if it wanted to. Mojtaba Khamenei, the new supreme leader, has staked his legitimacy on defiance. Complying with an American ultimatum would look like capitulation, and revolutionary regimes that derive their legitimacy from resistance do not survive capitulation.

Coercion works when the target values survival more than resistance. The Iranian regime may have reached the calculation that resistance and survival are the same thing. If that calculation holds, the ultimatum fails, and the United States faces a choice: follow through (escalating further) or back down (destroying the credibility of future threats). Neither serves American interests. Both extend the war.

What Washington Should Do

The United States needs to separate its campaign from Israel's. Not abandon the alliance. Not repudiate the joint operation. Define American objectives independently of Israeli ones and act on the distinction.

The American objectives have been largely achieved. What remains is the proxy network and the Hormuz closure, and neither has a military solution that does not require an indefinite commitment.

Proxy networks reconstitute. They always do. Twenty years of counterinsurgency in Iraq and Afghanistan taught 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 time.

The Hormuz closure ends when the war ends. Additional bombing gives Tehran more reason to keep the strait shut, because the closure is its last lever. Reopening the strait requires diplomacy, not more ordnance.

The administration entered this war with the right instincts: hit hard, hit fast, get the objective. It should return to them now. Define the American endstate. Communicate it to Israel. Start the diplomatic process. Close the campaign before it becomes the next decade-long war that nobody wanted and nobody knows how to end.

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