From what I have heard, the nastiest bunch to cross are Korean military. The Somalis should have asked to be turned over to the Russians.
Every Korean soldier is given extensive training in Taekwondo. Its really then just a question of how much they practice and how much pain they want to endure to become really good. The Korean SEALS are no doubt expert in it.
Should of read on “In one of the most controversial rescues, Russian marines freed 23 crew barricaded on board a Russian tanker, the Moscow University. The pirates were later found dead and adrift in a small boat.”