If drones were the next I.E.D., what’s the next tank?

The arrival of Australia’s Abrams in Ukraine revives the question of their purpose.

As Matthew Slusher recently wrote for the CSIS, “the conventional emphasis on firepower-heavy forces built around expensive platforms — tanks, warships, and advanced aircraft — is being challenged by the effectiveness of low-cost attritable assets, particularly drones.” Yes, we all know that. So three years into the Russo-Ukrainian War, why are we all s…