Seems like I remember the Russians turning some loose in a small boat, no water, no motor and then something happened like the boat sank. All pirates died at sea (shark bait?).
Ivan is good at some things, returned brutality is one.
Exactly my thought. Set them free in a zodiac after disabling the motor. Give them a pint of water each. If that vessel was flying the US Flag, that is an act of war at sea.
After the zodiac gets a few hundred yards out, time for some small arms target practice. Hate to lose a raft but what the hell.