Speaking of "Mass Murder"

Have a look at what the Argentine Junta did with their Internal Opponents: Thousands "disappeared" w/o a trace whatsoever. A favourite method was to load them in a plane, fly over the atlantic and simply drop them out of the door.

http://en.wikipedia.org/wiki/Dirty_War

Maggie's HMS concqueror attacked a warship in an armed conflict which was properly declared. Britain gave them a few days to realize their mistake and retreat, which they did not. This was all proper.