A new chilling video shows a Ukrainian drone flying directly into the open command hatch of one Russia's main battle tanks before exploding and, apparently, setting off the ammo inside.

The M1A2 Abrams is a formidable main battle tank used by the U.S. Army ... on the left side of the turret forward of the loader's hatch. Internally, however, the M1A2 has been radically redesigned ...