The Avengers.
I'm not even sure how anyone can vote in this poll. How do we qualify "707th Special Mission Battalion (South Korea)" better than "ARAS (Lithuania)". On what basis? Are you asking for us to basically pick our favorite name? Because 'Delta Force" has had that locked up for a solid 20 years, and they're not listed, though "Snow Leopard Commando Unit (China)" is pretty classy.