Named after a Burmese village, Pangsau Pass was the route that led to the invasion of Assam by the Ahoms, a Shan tribe, in the 13th century. It was nicknamed “Hell Pass” during the Second World War as its fierce gradients formed a mammoth obstacle for the American soldiers on their way to China. The Pangsau Pass Winter Festival is a famous event in Nampong, Arunachal Pradesh