The "drone strike" was ordered to punish that alleged crime, which was in fact a false charge, because the building attacked wasn't really an archive.
Pardon the question, but since I've only seen the movie once, it still puzzles me on the sequence things
1-Nutjob Admiral discovers/finds out about 20th century supermen in cyrofreeze
2-NA thaws out Top Superman, begins using him as evil-weapons brain trust. So Far I understand.
But was the attack set on the "archives" set up by Marcus with Khan executing the plan? The bomber did send a message to Marcus. When did Marcus and Khan stop working together to start a war? Again, questions of a single-viewing.