Legal experts say the U.S. military would have committed a crime if it intentionally killed survivors of a September strike on a suspected drug-smuggling boat off the coast of Venezuela.
Department of Defense Law of War Manual (p. 1075):
18.3.2.1 Clearly Illegal Orders to Commit Law of War Violations. The
requirement to refuse to comply with orders to commit law of war violations applies to orders to
perform conduct that is clearly illegal or orders that the subordinate knows, in fact, are illegal.
For example, orders to fire upon the shipwrecked would be clearly illegal.
Department of Defense Law of War Manual (p. 1075):
https://ogc.osd.mil/Portals/99/department_of_defense_law_of_war_manual.pdf
https://imgur.com/Qp6N7EE