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This summary covers The Economist’s May 30th, 2026 Leaders article on military technology and the changing logic of war, published under the headline Smarter tech is making war a dumber choice and listed in the contents as The future of war.

The article argues that modern military technology has changed the bargain behind wars of choice. Leaders still imagine short, decisive campaigns in which superior forces impose their will. But recent wars suggest the opposite: sensors, drones, precision weapons and artificial intelligence are making battlefields more transparent, offensives harder and weaker defenders more dangerous. The result is not a clean replacement of old warfare with a new formula. It is a harsher environment in which attacking states can destroy more targets than ever while still failing to achieve their political goals.

The Economist begins from a grim observation. Combat deaths in recent years have reached their highest level since the end of the cold war, and the wars that produced them have not delivered satisfying victories to the leaders who started them. Russia’s invasion of Ukraine has become a draining stalemate. America’s war with Iran has imposed costs without producing capitulation. These conflicts reveal two related truths: armies now struggle to advance on the ground, and smaller powers can punish stronger ones with tools that used to be available only to great powers.

The Exposed Battlefield

The first shift is visibility. Soldiers can be found by satellites, sensors and drones, then struck quickly and cheaply. Ukraine’s front line shows what this means in practice. Movement is broken into smaller groups. Supply and evacuation increasingly rely on machines. The space between the armies becomes a widening danger zone in which detection can be nearly as deadly as direct contact with the enemy.

Drones are only one part of this system, but they are the clearest symbol of it. They can watch, guide fire, attack vehicles, hunt individuals and spread fear beyond the moment of combat. Their lessons also travel quickly. Techniques pioneered in Ukraine appear in other theatres; missiles and drones available to Iran are far more accurate than the weapons weaker states could field a generation ago; and any Chinese attempt to cross the Taiwan Strait would face dense layers of unmanned surveillance and attack. Air superiority still matters, but it no longer gives ground forces the same protection it once did.

This does not mean manoeuvre warfare is dead. The article rejects the simple claim that future wars must always become static contests of infantry inching forward under drone fire. War is adaptive. Armies will learn to jam sensors, hide signatures, move faster and integrate their own unmanned systems. But adaptation requires preparation. Western forces need more counter-drone defences, more electronic warfare, more realistic training and a deeper willingness to use unmanned systems for reconnaissance, logistics and combat.

The Economist is also careful not to romanticise Ukraine’s performance. Its drone forces are inventive and effective, but its army still has weaknesses, including micromanagement and imperfect coordination between drones and assault units. Nor would Ukraine’s relatively small, short-range systems map neatly onto a Pacific war. A conflict over Taiwan would demand longer ranges, maritime reach and different logistics. The broader lesson is not to copy Ukraine’s exact kit, but to understand the conditions that made cheap, networked weapons so powerful.

Targeting Is Not Strategy

The second shift is the speed and scale of targeting. AI-enabled software can help armies identify command posts, depots, weapons systems and other targets much faster than before. In theory, this should let an attacker paralyse an enemy by destroying the things that hold its war effort together. In practice, The Economist argues, destruction does not automatically become decision.

The war with Iran is the article’s example. America and Israel could strike widely and accurately, but Iran did not collapse. It kept launching missiles and drones, retained enough of its nuclear programme to matter, disrupted the Strait of Hormuz and imposed economic costs far beyond the battlefield. The attacker could count destroyed targets, but those counts did not substitute for a political strategy.

That distinction matters because precision war can produce a false sense of control. Leaders may believe that superior sensors, aircraft, missiles and software can compress a campaign into a brief demonstration of dominance. Yet weaker states can now field their own precision weapons, disperse their forces, absorb punishment and impose costs. A stronger army may win many engagements while still discovering that the war is longer, more expensive and less decisive than expected.

The implication is especially uncomfortable for rich militaries. Their advanced munitions are costly and limited. If a campaign burns through stockpiles while the adversary survives, the side with better technology may still find itself strategically frustrated. Precision is useful only when tied to a plausible end state. Without that, it becomes an efficient way to deepen a war that should not have been started.

Norms Are Part Of The Calculation

The article’s third concern is the weakening of the laws and norms of war. Russia’s brutality in Ukraine and Hamas’s murder of civilians are obvious examples, but The Economist warns that norm-breaking is no longer confined to dictatorships and armed movements. Western democracies have also tolerated or celebrated conduct that erodes restraint.

The point is not only moral. It is practical. In an age of long-range drones, missiles and cyber-enabled targeting, Western civilians may no longer be insulated from the consequences of escalation. If powerful states treat legality and civilian protection as disposable constraints, they make future wars more dangerous for themselves as well as for their enemies. Restraint is a form of self-interest, not just a humanitarian ideal.

A Warning To Would-Be Invaders

The closing lesson is aimed at leaders tempted by wars of choice. Technology has not made war impossible, and it has not made defence invincible. But it has made optimism more dangerous. It is easier for defenders to see, strike and bleed attackers. It is easier for weaker states to acquire precision tools. It is easier to begin a war than to translate battlefield damage into political victory.

That lesson applies to several live temptations in the article’s world: renewed American escalation against Iran, a possible American attack on Cuba, Russia’s continued destruction in Ukraine and China’s decision about Taiwan. The common warning is that smarter weapons do not make political judgment less important. They make bad judgment costlier.

The article’s real target is the fantasy of the quick, clean war. New technology can make armies more lethal, but it also makes battlefields more transparent, defences more resilient and escalation harder to contain. For leaders who believe their own campaigns will be the exception, that should be sobering. As military technology gets cleverer, elective war looks less like strength and more like strategic self-harm.