Throughout the ongoing war in Ukraine, Kyiv has overcome its shortfalls in traditional munitions through the effective use of cheap, mass-produced drones. Moscow has followed suit.

Russia battered Ukraine overnight with its largest drone attack since the war began, Ukraine’s military said Sunday, ahead of an expected phone call between US President Donald Trump and Russian President Vladimir Putin on ending hostilities.

Russia launched its largest drone attack on Ukraine since the start of the war, before President Donald Trump is due to discuss a proposed ceasefire with Vladimir Putin.