Ukraine's president says a new prisoner exchange with Russia is ongoing and will take days, as both sides continue launching hundreds of attack drones.

Russia launched 479 drones at Ukraine in the war’s biggest overnight drone bombardment, the Ukrainian air force said.

Supply chains are the Achilles heel of any military operation.” Such a description, shared by defense logistics experts, has never been truer than it is in the aftermath of Ukraine’s recent attack on a Russian military train,