Ukraine sent dozens of its own citizens to Russia last month, releasing them from prisons in an attempt to secure the release of dozens of Ukrainian civilians held illegally in Russian jails – a move

Russia and Ukraine held a second round of peace talks where they agreed to exchange more prisoners and to return the bodies of 12,000 dead soldiers.

The attack on Friday, which killed at least four people nationwide, came two days after Russia vowed retaliation for an audacious drone assault on its strategic bomber bases.