'Russia suffering 1,000 casualties a day, 80% from drones': Rishi Sunak writes after meeting Volodymyr Zelenskyy

More than three years after Russia launched its full-scale invasion of Ukraine, the war has evolved into a grinding contest of attrition shaped as much by technology as by manpower. Former UK prime minister Rishi Sunak has claimed that Ukrainian president Volodymyr Zelenskyy told him Russia is losing around 1,000 soldiers a day, with drones now responsible for the vast majority of battlefield casualties. The assertion highlights how cheap, mass-produced unmanned systems are increasingly reshaping modern warfare, turning the conflict into a high-tech stalemate where it is often easier to detect and destroy enemy forces than to advance or hold ground.

What Sunak revealed

Writing in The Times after the Munich Security Conference, former UK prime minister Sunak said Zelenskyy carries real-time battlefield data on an iPad during diplomatic trips to counter the perception that Ukraine is being overwhelmed. According to former UK prime minister Sunak, the figures show that while the fighting remains intense, Russia’s advances since the 2022 invasion have been slow and extremely costly.




Former UK prime minister Sunak said Zelenskyy emphasised that drone warfare has fundamentally transformed the conflict. Ukraine’s extensive use of unmanned aerial and maritime systems has allowed it to inflict heavy losses on Russian forces while offsetting Moscow’s advantages in manpower and conventional weapons.

He also pointed to NATO exercises that revealed how unprepared Western militaries remain for this shift in warfare. Former UK prime minister Sunak warned that future conflicts are likely to depend less on expensive legacy platforms and more on scalable, rapidly adaptable technologies such as drones.

Why drones are changing the war

Drones have become the defining weapon of the conflict, fundamentally reshaping how battles are fought. Defence analysts note that relatively cheap unmanned systems can now destroy extremely expensive targets such as tanks, ships and strategic bombers at a fraction of the cost. A recent Sunday Times defence analysis highlighted how Ukrainian drone strikes have destroyed high-value Russian military assets deep inside its territory, exposing vulnerabilities once thought impossible to exploit.

Experts say drones are creating what military planners call a “denial battlefield,” where it has become easier to detect and destroy enemy forces than to advance or hold ground. This shift has slowed the war to a grinding stalemate, with constant surveillance and precision strikes making large manoeuvres increasingly difficult.

Latest battlefield situation

As of early 2026, the war has settled into a prolonged conflict of attrition marked by heavy losses, long-range strikes and intensifying drone warfare on both sides. Ukraine has increasingly demonstrated its ability to strike deep inside Russian territory, including attacks on key military-industrial facilities far from the front lines, while Russia continues large-scale missile and drone barrages targeting Ukrainian cities and infrastructure.

Attrition remains extremely high, with analysts estimating that combined military casualties on both sides could soon approach two million, with Russia believed to have suffered the larger share. The conflict is now widely seen as a war of endurance, defined by slow territorial changes, persistent long-range attacks and a growing reliance on drones rather than rapid battlefield manoeuvres, even as peace negotiations remain stalled with little prospect of a near-term ceasefire.

The big picture

The Ukraine war is increasingly viewed as a preview of future conflict. It has demonstrated how relatively inexpensive technologies can challenge traditional military superiority, forcing armies to rethink doctrine, procurement and strategy. For Western defence planners, the lesson is clear: the wars of the future may be decided less by large conventional platforms and more by speed, innovation and the ability to scale new technologies quickly.