We have come a long way, and almost the entire world is now connected to each other. However, there are still several tribes around the world that choose to live far away from modernity. Some of these tribes are known for extraordinary tales about them being vicious killers, cannibals, insane physical strength, and more.

In this video, we’ll take a look at some of the most isolated and mysterious Tribes from all around the world. From the killer tribe to the astounding lip plates of the Suri tribe, here are the 15 toughest tribes that are feared by the US army.