Some military officials believe the arrival of these F-16 jets won’t really make a difference at this point in the ongoing conflict.

A Ukrainian pilot was killed and his F-16 fighter jet crashed as after Russia launched a huge aerial assault involving hundreds of drones and scores of missiles overnight, the Ukrainian military said on Sunday.

The strikes targeted several regions, including western Ukraine, far from the front lines. Officials confirmed three deaths and said another two died in Russian shelling.