Russian invasion of ukraine has been the only war in quite a long time where a major power has been fighting against a major power. most other conflicts in many decades have been asymmetrical warfare/symmetrical warfare between outdated militaries. Ukraine has shown that drones are the new thing in warfare, they provide excellent intel, cheap short range pinpoint accurate light artillery. unmatched spotting for heavier artillery and with a bit more expense long range strategic strikes are also possible. With drone warfare MBTs seem to be mostly just the juiciest of targets.

Where previously M1 could be resistant to most attacks, now with drone spotting a direct hit with guided shells can score a direct hit of 155mm shell on top armour of tanks.