The Iran air campaign was a clean American success, and conservatives should say so without qualification. The administration set out to punish a regime that had killed Americans and that was on a trajectory toward a deliverable nuclear weapon, conducted a forty-five-day operation that achieved its stated objectives ahead of schedule, and produced a ceasefire on terms that compared favorably to anything previous administrations had managed to extract from Tehran across two decades of more cautious effort. American casualties were low, the political shock to the country was manageable, and the deterrent signal to other adversaries was unambiguous. That is the conservative case for the decisive use of force made in real time, and the country broadly accepted it.

What I want to write about is not the war that was won but the operation that has succeeded it, and the question I want conservatives to consider is not whether that operation is wrong, which is a verdict it is too early to render, but whether it is being supervised with the kind of clarity about ends and means that conservatives have spent a generation arguing should govern American military commitments. The blockade of Iranian ports has now lasted longer than the air campaign that produced the ceasefire, and the diplomatic track that the blockade is supposedly serving has so far produced one collapsed round in Islamabad and one quiet effort in Muscat whose outcome is not yet visible. Whether the operation will be remembered as the leverage that produced a useful agreement or as the moment when a winning campaign began drifting into something less defined depends on choices that the administration and the country have not yet made.

The conservative tradition on this kind of question is more demanding than the cable-news version of it tends to acknowledge. Caspar Weinberger, in the 1984 doctrine that became the durable conservative framework for the use of force, listed six tests that any deployment should pass: vital national interest at stake, willingness to commit forces sufficient to win, clearly defined political and military objectives, ongoing reassessment of the relationship between objectives and forces, reasonable assurance of public and congressional support, and force as a last resort. The doctrine was not pacifist; Weinberger was Reagan's defense secretary and presided over the largest peacetime military buildup in American history. The doctrine was, instead, an attempt to encode the lesson that conservatives had drawn from Vietnam, which was that military operations launched without clear ends, sustained on the assumption that more pressure would eventually produce the desired result, and continued past the moment when their original justifications had lapsed, tend to develop their own institutional momentum that is difficult to interrupt and politically costly to terminate.

The Iran air campaign passed the Weinberger tests handily. The blockade is a closer call, and the call is getting closer. The original justification for the operation was ceasefire enforcement: Iran had agreed to terms it would have incentives to evade, and the Navy would maintain the pressure that had produced the agreement until verification mechanisms were in place. That justification was reasonable, the implementation was competent, and the early days produced exactly the political pressure on Tehran that the operation was designed to produce. What has happened since the ceasefire was actually accepted is harder to assess. The blockade has continued, the stated objectives have broadened from ceasefire enforcement to the negotiation of a comprehensive nuclear and regional behavior agreement, and the operational tempo has not slackened in ways that would correspond to any visible reassessment of whether the original mission has been accomplished. Whether this represents purposeful escalation toward a defined endpoint or the early stages of the kind of mission creep that conservatives have learned to distrust is, at this writing, genuinely unclear.

I want to be careful here, because the strongest version of the worry I am articulating tends to slide into the lazy version of it, which is that any extended military operation is by definition a forever war waiting to happen. That is not the conservative position; it is the progressive caricature of the conservative position. American military commitments do not all become Vietnam, and conservatives who reflexively oppose any operation that lasts longer than a few weeks are confusing prudence with pacifism. The Korean armistice has been enforced for seventy years without becoming a forever war in the sense the term is now used, the post-1991 no-fly zones over Iraq operated for twelve years before becoming an invasion that need not have followed from them, and the maritime presence in the Persian Gulf has been a feature of American defense posture since the Carter administration without consuming the country in ways its critics in 1980 predicted. Sustained operations can be conducted with discipline, with clear endings, and with continuous reassessment of whether the original justifications still apply. The question conservatives should be asking about the Iran blockade is not whether it is automatically illegitimate but whether it is being conducted with the discipline that the conservative tradition has long required.

The signs to watch for are not difficult to identify. The first sign of drift, in any operation of this kind, is a quiet expansion of stated objectives without a corresponding public reassessment of whether the original objectives have been met. The original objective was ceasefire enforcement, and the ceasefire has been accepted; the new objective is a comprehensive agreement covering nuclear, missile, and regional behavior, and that objective is broader by an order of magnitude than what justified the operation when it began. The administration has not publicly explained when this expansion occurred, what triggered it, or what the new endpoint looks like in terms specific enough that the country would be able to recognize success or failure. That kind of explanation is the minimum that the Weinberger tests require, and the absence of it is something that conservatives should be asking about, even if the answer turns out to be reassuring.

The second sign is the gradual conversion of a tactical instrument into an institutional commitment. The blockade is now generating constituencies that have an interest in its continuation: the defense industrial base that is now sized to a sustained operational tempo, the intelligence community that has cultivated sources and access tied to the deployment, the State Department that has built a negotiating posture around the leverage the blockade provides, and the allied governments, particularly in Israel, that have their own reasons to prefer that American pressure on Iran continue indefinitely. Each of these constituencies has rational interests that are worth taking seriously. Their cumulative effect is to make ending the operation harder than starting it, which is not in itself an argument against the operation but is an argument for vigilance about whose voices are loudest in the conversation about when it should end.

The third sign is the erosion of congressional consultation, and on this point the warning lights are now visibly flashing. The 47 House members, including 31 Republicans, who signed last week's War Powers Resolution challenge represent the first organized political response to the duration of the blockade, and the Speaker's procedural ability to bury the challenge does not eliminate the underlying political fact that conservative members are now publicly questioning whether the operation meets the standards that conservatives have applied to military deployments under previous presidents of both parties. The administration's response, the standard bureaucratic line about welcoming engagement and continuing to brief members, is the language of an administration that has decided not to seek congressional authorization, and that is a posture conservatives would recognize and criticize if it were being adopted by the other party. Consistency on this question is what distinguishes principled foreign policy realism from partisan rationalization, and the conservative movement should hold itself to the standard it has long applied to others.

None of this is to predict that the blockade will produce a forever war, because the operation may well produce the diplomatic outcome it is being asked to produce. The Muscat track is real, both delegations are present, the substantive proposals on the table appear to be closer together than the public rhetoric would suggest, and the administration's pressure campaign may yet deliver an agreement that justifies the costs the blockade has imposed. If that is what happens, conservatives will have less to say about the operation in retrospect than the warning lights now suggest, and the lesson will be that decisive military action followed by sustained economic pressure can produce diplomatic results when applied with discipline. That outcome would be a substantial conservative success, and the wariness I am articulating now will turn out to have been a useful corrective rather than a vindicated prediction.

What conservatives should be doing in the meantime is not opposing the blockade, which is a tactical instrument with real strategic utility, but pressing the administration for the kind of clarity about ends, means, and timelines that distinguishes purposeful pressure from drift. The questions are familiar to anyone who has read the conservative critiques of the post-9/11 wars, and they are the right questions to ask of any administration of either party. What is the political objective the operation is now serving, given that the original justification has been overtaken by events? What does success look like in terms specific enough that the country could recognize it? What is the maximum acceptable cost, in dollars, in oil prices, in naval readiness, in alliance friction, that the country is being asked to bear in pursuit of that success? What is the exit strategy if the Muscat talks produce nothing, and what is the timeline for activating it? How will Congress be brought into the decision about whether to continue past the 60-day War Powers clock, and what would the administration do if Congress declined to authorize continuation?

The administration has good answers to some of these questions and is still working out answers to others, which is the normal condition of any sustained operation in its early months. What it owes the country, and what conservatives should be insisting it provide, is the public articulation of those answers in language that allows the political system to weigh them rather than defer to executive judgment indefinitely. The Iran air campaign was won because it was prosecuted with clarity about ends and means. Whether the blockade is remembered as the leverage that completed that success or as the moment when discipline began to slip will depend on choices that have not yet been made. Conservatives spent the post-Iraq decade arguing that those choices should be made transparently, with congressional buy-in, on timelines understood by the public. The argument is now being tested by an administration many of those same conservatives elected, and the test is not whether to support the president but whether to apply the principles that defined the conservative position in the first place. That is the wariness the moment calls for, and it is wariness rather than opposition that the situation actually warrants.