The Global Institute for Strategic Studies (GISS)
The collapse of ceasefire arrangements is often explained as a failure of diplomacy, a breakdown of trust, or the result of renewed military provocation. Yet these explanations describe the immediate trigger rather than the deeper structural problem. Ceasefires rarely fail simply because negotiators drafted inadequate language or because one side suddenly abandoned peace. More often, they fail because the agreement temporarily suspends violence without constructing the institutions required to manage the political, security, and economic disputes that remain unresolved. A ceasefire can halt missiles, air strikes, maritime attacks, or cross-border operations, but it cannot by itself establish credible verification, regulate disputed security zones, distribute the benefits of sanctions relief, create channels for crisis communication, or impose meaningful costs for non-compliance. This distance between diplomatic commitment and institutional implementation constitutes the governance gap. It is the space in which ambiguity grows, rival interpretations harden, tactical violations accumulate, and a temporary cessation of hostilities gradually becomes preparation for the next confrontation.
The renewed confrontation between Iran and the United States provides a particularly revealing example. Unlike conventional post-conflict cases involving a single state emerging from civil war, the Iran–US dispute is an interstate confrontation embedded in a wider regional security system. The governance challenge therefore does not concern rebuilding one national administration. It concerns the absence of a sufficiently legitimate and enforceable regional architecture capable of regulating military escalation, nuclear activity, sanctions, maritime security, proxy relationships, and freedom of navigation. Recent ceasefire diplomacy reportedly sought to stop direct hostilities, reopen the Strait of Hormuz, and create space for negotiations over a more comprehensive settlement. Yet the interim arrangement came under pressure within weeks as disagreements over maritime activity, sanctions, nuclear access, and the meaning of compliance remained unresolved. By mid-July 2026, renewed hostilities had significantly weakened the memorandum, while mediators were discussing another temporary ceasefire to revive the earlier framework.
This experience demonstrates why the distinction between a ceasefire and a peace settlement is strategically important. A ceasefire is primarily an instrument of restraint. It asks opposing actors to stop particular forms of violence for a specified period. Sustainable peace, by contrast, requires an institutionalized process through which disputes can be managed after restraint begins to erode. In the Iran–US context, the central questions extend far beyond whether each side temporarily suspends military operations. Who verifies that shipping through the Strait of Hormuz is genuinely secure? Which institution determines whether a naval maneuver is defensive, coercive, or a violation of the agreement? How are disputes over sanctions relief adjudicated? What happens if inspectors cannot access a nuclear facility? Which communication channel remains operational when political leaders face domestic pressure to retaliate? Without agreed answers, every incident becomes a contest of narratives, and every contested action can be interpreted as evidence that the other side has abandoned the agreement.
A Ceasefire Without an Institutional Home
The fragility of Iran–US ceasefire diplomacy arises partly from the absence of an institutional home capable of sustaining implementation. Agreements reached under intense military pressure are frequently negotiated through intermediaries, emergency diplomatic channels, or temporary memoranda. These mechanisms may be effective in stopping immediate escalation, but they are rarely designed to administer a complex settlement over time. Mediators can transmit proposals and narrow differences, yet they generally lack the authority to investigate violations, compel access, impose graduated penalties, or guarantee that political commitments survive leadership changes. The result is a diplomatic structure heavily dependent on continued political goodwill precisely when goodwill is least abundant.
A durable arrangement would require more than a hotline between Washington and Tehran. It would require permanent technical bodies responsible for maritime security, nuclear verification, sanctions sequencing, incident investigation, and dispute resolution. Each body would need clearly defined procedures, access to relevant information, and the political backing of participating states. A maritime commission, for example, could establish navigation protocols, identify prohibited activities around commercial shipping routes, and investigate disputed incidents before they trigger retaliation. A sanctions implementation mechanism could clarify which restrictions would be suspended, under what conditions, and according to what timetable. A nuclear monitoring framework would need to define access requirements, reporting obligations, and responses to uncertainty. Without such institutional arrangements, implementation remains vulnerable to political interpretation, intelligence disputes, and unilateral action.
The failure to create an institutional home also undermines continuity. Strategic agreements must survive not only military incidents but also changes in leadership, domestic political opposition, and shifting regional alliances. When an arrangement depends excessively on a small number of political leaders or informal understandings, its durability becomes inseparable from their personal authority. A change in government, a contested attack, or a public accusation can rapidly destroy the credibility of commitments that were never sufficiently embedded in formal procedures. The Iran–US relationship is especially exposed to this danger because decades of hostility have produced limited diplomatic contact, weak bureaucratic cooperation, and deep suspicion toward negotiated compromise on both sides.
The Verification Deficit
Verification is often treated as a technical component of peace agreements, but in reality it is a form of governance. It determines who has the authority to establish facts, which evidence is considered legitimate, how disputes are investigated, and what consequences follow from confirmed violations. Where verification mechanisms are weak, the stronger narrative frequently replaces the stronger evidence. Governments may rely on intelligence assessments they cannot disclose, while opponents dismiss those assessments as politically motivated. Public accusations then become substitutes for institutional adjudication.
This problem is especially severe in conflicts involving multiple domains. A ceasefire between Iran and the United States cannot be monitored solely by counting air strikes or missile launches. It may also involve naval deployments, attacks on commercial vessels, restrictions on oil exports, cyber operations, nuclear activities, and the actions of armed groups that possess varying degrees of political or operational connection to Tehran. A single monitoring mechanism is unlikely to possess the expertise or legitimacy required to evaluate all these areas. Yet separating them entirely also creates opportunities for strategic manipulation, because one side may comply in one domain while escalating in another.
The reported deterioration of the 2026 interim arrangement illustrated this difficulty. Disagreements over the Strait of Hormuz and attacks affecting commercial navigation became central to the collapse of confidence, while questions surrounding nuclear inspections and the broader settlement remained unresolved. The arrangement had sought to use a temporary cessation of hostilities as a bridge toward a wider agreement, but the bridge lacked sufficiently developed mechanisms for determining responsibility and containing escalation when disputes emerged.
Effective verification must therefore do more than document violations after they occur. It should prevent disputed incidents from automatically producing military retaliation. This requires predetermined investigative procedures, protected communication channels, rapid access to technical data, and a graduated response system. Minor or ambiguous breaches should trigger consultation and investigation rather than immediate escalation. Repeated or deliberate violations should produce defined consequences accepted in advance by the parties. The central purpose is not to eliminate mistrust—an unrealistic objective in deeply adversarial relationships—but to prevent mistrust from controlling every decision.
Sanctions Relief as a Governance Problem
Economic provisions are among the most difficult components of any agreement between Iran and the United States because sanctions are not merely bargaining instruments. They are complex legal and administrative systems involving executive agencies, legislatures, banks, insurers, shipping companies, regulators, and international partners. Political leaders may announce sanctions relief, yet commercial actors can remain unwilling to resume transactions because they fear future penalties, legal ambiguity, or the sudden restoration of restrictions. Consequently, the formal removal of a sanction does not necessarily produce immediate economic benefit.
This creates a dangerous implementation imbalance. Iran may be expected to undertake visible and rapid actions—such as suspending particular nuclear activities, permitting inspections, or changing maritime behavior—while the economic rewards offered in return arrive slowly, incompletely, or indirectly. Iranian officials can then argue that the United States has failed to deliver meaningful relief, while American officials may insist that legal commitments have been fulfilled and that private market decisions lie beyond government control. Both positions may contain elements of truth, but without an institutional mechanism capable of measuring implementation, the disagreement becomes politically corrosive.
Sanctions sequencing therefore requires governance rather than broad diplomatic promises. A credible settlement would specify which restrictions are removed, suspended, or waived; which transactions become permissible; how financial institutions receive legal assurance; and what process governs the reimposition of measures in the event of non-compliance. It would also need independent reporting capable of determining whether promised economic access has materialized in practice. Otherwise, sanctions relief remains vulnerable to the same ambiguity that has weakened previous diplomatic arrangements.
The wider strategic lesson is that economic incentives must be administratively deliverable. Peace agreements fail when negotiators promise outcomes that the institutions responsible for implementation cannot reliably produce. In the Iran–US case, this challenge is intensified by domestic legal constraints, political opposition, and the international reach of the American financial system. The durability of any future agreement will therefore depend not only on what senior officials sign, but also on whether regulators, banks, shipping companies, inspectors, and international partners can translate political commitments into predictable operational rules.
Domestic Politics and the Absence of Internal Consensus
Peace agreements are negotiated internationally but sustained domestically. Leaders must persuade political institutions, security establishments, influential economic actors, and the wider public that continued restraint serves the national interest. Where agreements are presented as tactical pauses rather than legitimate strategic compromises, domestic opponents have strong incentives to portray concessions as weakness. This narrows the political space for implementation and makes each disputed incident more dangerous.
In both Iran and the United States, relations with the other side are shaped by decades of confrontation and deeply institutionalized suspicion. Political constituencies skeptical of negotiation do not need to prove that an agreement has completely failed; they need only demonstrate that the opponent remains untrustworthy. A delayed inspection, a disputed maritime encounter, or incomplete sanctions relief can therefore become evidence supporting broader arguments against diplomacy. Once such interpretations dominate domestic debate, leaders may calculate that retaliation is politically safer than restraint.
This problem cannot be solved through secrecy alone. Confidential diplomacy may be necessary during negotiations, but agreements that remain poorly explained are vulnerable to deliberate misrepresentation. Sustainable implementation requires governments to define what the agreement does, what it does not do, how compliance will be evaluated, and why restraint serves national security. It also requires political preparation before an agreement is signed. Legislatures, relevant agencies, military institutions, and economic regulators must understand their responsibilities and the consequences of non-implementation.
Domestic legitimacy is especially important when an agreement involves phased concessions. Each side must maintain confidence that temporary restraint will not simply allow the opponent to improve its military position or evade obligations. Transparency cannot eliminate strategic competition, but it can reduce the political value of exaggerated accusations and create a constituency with a practical interest in continued implementation.
The Regional Governance Vacuum
The Iran–US confrontation cannot be separated from the regional environment in which it unfolds. Maritime security, armed non-state actors, military bases, energy routes, and competing deterrence strategies connect the bilateral dispute to a much wider set of states. A narrow agreement between Washington and Tehran may stop direct attacks while leaving regional escalation pathways untouched. Conversely, incidents involving third parties can rapidly destabilize an otherwise functioning bilateral ceasefire.
This is why the governance gap is regional as well as bilateral. The Middle East lacks an inclusive security framework capable of managing maritime incidents, missile risks, cross-border escalation, and the relationship between state and non-state military actors. Existing alliances provide deterrence for their members but do not offer a common mechanism through which adversaries can investigate incidents or establish mutually accepted rules. Regional diplomacy therefore tends to become reactive, intensifying only after a crisis has already threatened energy markets, civilian infrastructure, or international shipping.
The Strait of Hormuz illustrates this institutional vacuum. It is simultaneously an international trade route, an area of national security sensitivity for Iran, a zone of American military activity, and a critical artery for global energy markets. Any sustainable arrangement governing the strait must reconcile these overlapping interests. Temporary assurances of free passage are insufficient unless supported by shared navigation procedures, notification mechanisms, incident-management channels, and credible monitoring. The alternative is a cycle in which each side interprets the other’s actions through the lens of worst-case intentions.
A regional mechanism would not require immediate political reconciliation. It could begin with functional cooperation in areas where miscalculation presents a common danger: maritime communication, rescue operations, notification of exercises, investigation of attacks on commercial shipping, and protection of civilian infrastructure. The objective would be modest but strategically significant—to create procedures capable of preventing a limited incident from becoming a regional war.
From Temporary Restraint to Governed De-escalation
The failure of ceasefires is often attributed to the impossibility of trust between adversaries. This conclusion is understandable but misleading. Peace agreements do not require trust as a precondition; they require institutions capable of managing its absence. Indeed, the more profound the mistrust, the greater the need for verification, communication, sequencing, and dispute resolution. Institutional design is not a substitute for political will, but it can preserve political space when will begins to weaken.
For Iran and the United States, the realistic objective may not be comprehensive reconciliation. Their strategic disagreements are too deeply embedded, and their regional interests remain too divergent, for a single agreement to resolve every issue. A more credible goal would be governed de-escalation: an institutional framework that limits the forms of competition most likely to trigger war, creates reliable procedures for addressing violations, and links concessions to measurable implementation. Such a framework would recognize continued rivalry while preventing rivalry from repeatedly escalating into direct military confrontation.
This approach would require several interconnected pillars. First, a permanent crisis-communication mechanism should operate continuously rather than being activated only during emergencies. Second, maritime incidents should be investigated through a technical commission with access to shipping data and agreed evidentiary standards. Third, nuclear obligations and sanctions relief should proceed through reciprocal, phased measures verified by institutions capable of reporting on both sides’ performance. Fourth, regional actors should participate in functional security arrangements addressing navigation, civilian infrastructure, and escalation management. Finally, violations should trigger graduated and reversible consequences rather than an immediate return to unrestricted military action.
The central lesson from the Iran–US confrontation is therefore not that diplomacy is futile. It is that diplomacy without governance is fragile. A ceasefire can create time, but institutions determine whether that time is used to construct stability or merely to reorganize for renewed conflict. Agreements endure when they transform political promises into predictable procedures, establish legitimate methods for determining facts, and create incentives for continued compliance even during periods of intense mistrust.
The measure of success should consequently extend beyond the number of days without direct attacks. A durable arrangement must be judged by whether it can survive a disputed incident, a delayed concession, a domestic political crisis, or a change of leadership. That is the difference between temporary silence and sustainable peace. The guns stop because leaders issue orders; they remain silent only when institutions make restraint more credible, more manageable, and ultimately more valuable than escalation.