evidence: In Himachal Pradesh , the disputed areas are - Kaurik - Shipki La, an ancient trade route. [...] It started in the Daulat Beg Oldi (DBO) which is claimed by both sides. As a part of confidence-building measures (CBMs), both the Indian Army and the PLA had no permanent camps in the area. [...] Doklam is plateau land in Bhutan and extremely strategic to both countries. It protects the vulnerable Siliguri Corridor (also called Chicken’s Neck), the only connection of Indian mainland to the northeast.