Two Global Centres of War — Ukraine and Iran: What Force Decides When Diplomacy Sleeps

As of 7 April 2026, the world has at least two major theatres of war that can no longer be viewed in isolation from one another: Ukraine and Iran. Formally, these are different conflicts — one has been raging in Eastern Europe for a fifth year, while the other has, within a matter of weeks, turned into a Middle Eastern crisis of global significance. In reality, however, they are becoming ever more closely intertwined — through weapons, energy, global politics, and the limited diplomatic capacity of the great powers.

The war in Ukraine remains the largest land conflict in Europe since the Second World War. According to AP and Reuters, the front line stretches for roughly 1,250 kilometres; Russia continues its spring offensive, while Kyiv, despite isolated counterstrikes and the partial recovery of territory, is still fighting a war of attrition. At the same time, the diplomatic process has not disappeared entirely: Volodymyr Zelenskyy confirmed his readiness for a limited halt to strikes on energy infrastructure over Orthodox Easter, and Kyiv is expecting new contacts with American mediators after the negotiating track was slowed by the escalation in the Middle East.

The Iranian crisis, for its part, has in a very short time moved beyond the bounds of a local exchange of strikes. Reuters and AP report that the United States and Israel have already been engaged in conflict with Iran for more than five weeks; the Strait of Hormuz has been significantly obstructed; and diplomatic efforts to secure even a limited international consensus on protecting shipping were derailed by the Russian-Chinese veto in the UN Security Council. At the same time, Pakistan is attempting to preserve a channel for mediation and is seeking at least a two-week pause for negotiations, while Tehran insists that the order must be reversed: first the strikes must stop and guarantees be given, and only then can there be serious talks of peace.

It is precisely here that one sees what force decides when diplomacy lags behind. Force does not decide peace itself; it decides the terms on which peace is discussed. In Ukraine, that means the front line and the strikes on infrastructure determine who comes to the negotiating table from a position of greater leverage. In Iran, force is already shaping not only the military agenda, but the economic one as well: the Strait, oil, shipping insurance, and the conditions of transit. The analytical conclusion from the present dynamic is straightforward: both wars show that where diplomacy fails to establish binding rules of the game in time, weapons begin to define the framework of the future bargain themselves.

There is a deeper connection between the two theatres as well. Zelenskyy directly warned AP that a prolonged war with Iran could weaken U.S. support for Ukraine, above all in relation to Patriot air-defence systems and Washington’s overall political attention. Moreover, rising oil prices triggered by the Iranian crisis objectively ease pressure on Russia as a major commodity exporter. In other words, the Middle East is not simply becoming a separate war; it is becoming a factor that alters the balance of resources and time in the war in Ukraine.

But the reverse influence is also already visible. Reuters reports that Ukraine has offered its Middle Eastern partners its expertise in maritime security and the protection of navigation, drawing on its own experience of keeping access to the Black Sea open without possessing a classical large navy. That is a highly revealing development: the war in Ukraine is being transformed from a regional conflict into a source of military technologies, tactical models, and diplomatic capital for other crisis regions. In other words, Ukraine and Iran today are linked not only through Russian-Iranian drones and broader anti-Western coordination, but also through the export of wartime experience that is helping to shape a new international architecture of force.

When diplomacy sleeps, force decides something else as well — the price of human life. In Ukraine, this is expressed through the continuation of strikes on buses, cities, energy systems, and civilian infrastructure even against the backdrop of discussions about an Easter pause. In Iran, it is expressed through threats to destroy infrastructure, fighting around energy and industrial sites, and the sharply rising risk of the war spreading further into the Gulf states. In both cases, diplomacy is not entirely absent; it exists in the form of channels, mediators, proposals, visits, and resolutions. But so long as it cannot stop the pace of military operations, its role remains reactive rather than decisive.

This leads to the main conclusion. The world today does not live in an age without diplomacy, but in an age of delayed diplomacy. In Ukraine, diplomats are lagging behind the logic of the battlefield. In Iran, they are lagging behind the logic of escalation, ultimatums, and energy blackmail. And when diplomacy arrives later than force, force begins to decide where the red line lies, what the price of compromise will be, who is granted time, and who is condemned to exhaustion. That does not mean diplomacy is useless. It means that without the ability to impose rules quickly, to secure verifiable guarantees, and to attach a cost to violations, it becomes little more than a language of commentary on events that have already taken place.

That is why Ukraine and Iran are not merely two separate theatres of war. They are two mirrors of the same global crisis: a crisis in which military force has once again become the universal argument of international politics, while diplomacy too often records the consequences instead of preventing them. And until that balance changes, new wars will begin not only where no one wanted peace, but where peace itself proved unable to defend its own foundations.