I suspect warfare will be conducted very differently in the 22nd century.
"The DoD tactical computer has designated your ZIP code as eliminated.
"You have 24 hours to report to your mandatory disintegration chamber."
-PJ
There was a programme on TV here saying drones have already changed the battlefield or what it resembles now forever. They followed a mercenary in Ukraine who when moved got picked up by drone and his position was mortared. He had a lucky escape!