In an era of global security and technological prowess, the world's oceans have become a battleground of innovation and power. Submarines, the stealthy giants of the deep, play a pivotal role in safeguarding nations and asserting dominance in the vast blue expanse. In this video, we will delve into the top 10 deadliest submarines on the planet. With weapons arsenals worth billions that can attack land and sea, let's find out which sub might end mankind as we know it.