Armored vehicles have thin armor on top, which allows effective top-attack by smaller munitions such as SADARM.[1] SADARM is smaller than a typical toaster and

Armored vehicles have thin armor on top, which allows effective top-attack by smaller munitions such as SADARM.[1] SADARM is smaller than a typical toaster and weighs 12 kg. An even smaller micro-drone could just attack a tank's gun by setting a small charge or providing blockage that would be devastating when the tank fired. 1. https://en.wikipedia.org/wiki/Sense_and_Destroy_ARMor https://en.wikipedia.org/wiki/Sense_and_Destroy_ARMor