China continues to construct “dual-use” border villages and troop habitats along LAC near Arunachal Pradesh and Sikkim. It has also cranked up its integrated military exercises and kept reserve troop formations mobilised in that area. India, in turn, is ensuring full operational preparedness to take care of any contingency along the frontier. India is also assiduously working towards mitigating the threat to the vulnerable Siliguri Corridor or the “Chicken’s Neck” connecting northeastern states. Upgraded L-70 air defence guns and other weapon systems deployed at forward location along the Line of Actual Control near Tawang area in Arunachal Pradesh. Many PLA reserve formations, mobilised last year, continue to remain in place in “depth areas” across the 1,346-km border at Arunachal Pradesh and Sikkim border. In wake of a 17-month-long military confrontation in eastern Ladakh, the government is considering reviewing border pacts with China.