commando

noun3

1. •
   A small fighting force specially trained for making quick destructive raids against enemy-held areas.

   • The most important objective was at Batna itself, where a group of three commandos each comprising ten men was to attack Deleplanque's sub-prefecture […]. — 1977
2. •
   A commando trooper.

   • Ben Grant, 30, who spent more than five years as a commando in the Royal Marines, is part of group of seven ex-servicemen who arrived in Ukraine over the weekend to fight invading Russian forces. — 2022
3. •
   (historical) An organized force of Boer troops in South Africa; a raid by such troops.