So back in 1944, a German U-Boat Commander named Heinz-Wilhelm Eck did exactly what US Secretary of War Pete Hegseth ordered US military forces to do - kill the survivors of a destroyed boat at sea.
Now, as then, this is considered a War Crime.
In 1945, Commander Eck was tried, found guilty with his own logs condemning him and executed by firing squad by the Allies.
USA, this is where you are now.
Doing literal war crimes every nation condemned the Nazis for.