NATO Secretary-General Jens Stoltenberg argued that countries that have provided military support to Ukraine should allow them to use those weapons to hit targets deep within Russian territory.

Over the course of the war, the United States, as well as other NATO allies, has restricted Ukraine from using its weapons to hit targets within Russia, though the U.S. loosened those rules a couple of months ago when Russia began attacking Kharkiv from right behind the border. There has long been a concern among Western countries about Russian escalation.