The massive, powerful Abrams M1A1 battle tank looks as though it can crush anything that stands against it. But in the Ukraine war, where nimble drones own the battlefield, the tanks have failed to have the effect Ukraine hoped for when America agreed to send the weapons to them in January 2023, according to the Associated Press. So far, five of the 31 tanks, which cost $10 million each, have been destroyed by drones, two U.S. military officials whose names were not used have revealed. Buzzing gnat-like drones that hunt and kill on a Ukrainian battlefield mean “there isn’t open ground that you…