The move "was made to put America’s interests first," a White House spokeswoman said, as U.S. munitions have been depleted in recent years.

IN RECENT WEEKS Ukraine has endured some of the most intense drone and missile bombardments since the start of Russia’s full-on invasion three years ago. There could scarcely be a worse time for America to halt the delivery of precious air-defence equipment.

Russia, which has been sending massive waves of drones and missiles against Ukraine, said the U.S. move would help end the war early.