US-made Abrams tanks are fighting a dangerous new kind of war, but Ukrainians are building unusual armor to help them survive it

• Small drones packed with explosives have proven to be a major threat to armored vehicles in Ukraine.
• Both sides of the conflict have built cages around their tanks to give them added protection.
• One Ukrainian operation is making protective screens for Kyiv's arsenal of US-made M1 Abrams tanks.

American-made M1 Abrams tanks were built to fight the Russians, but on the battlefield in Ukraine, they are fighting an unfamiliar kind of war as they go up against Moscow's arsenal of deadly exploding drones — something the Soviets never had and something the Abrams hasn't seen in its other wars.