What happens when an unstoppable force meets an immovable obstacle? You send in the Special Forces, that’s what. It takes a unique kind of relentlessness to join these elite groups. Some people like that you’ve met on martial arts mats. They’re the fighters that push on when all others stop.  Always fighting, always training, always pushing the limits; and they do it with no personal trainer insurance either. When at war these warriors join the battle silently, homing in for the kill, and when they leave, their enemies lie broken; unable or unwilling to fight. It’s hard to rank the various Special Forces in the world, for how does one measure valor? Below you’ll find the 25 most daring Spec Ops Groups on earth, in no specific order.

MARCOS, India

MARCOS or “Marine Commandos” are among the deadliest warriors in the world. Extreme physical and emotional conditioning are just some of the skills in these warriors’ arsenal. Along the US Navy SEALs, the “Dadhiwalee Fauj” (Bearded Army) is the only force on earth capable of full-fledged, water body combat.