Heavy rain and landslides made rescue efforts difficult. 20 helicopters were used on the first day to deliver food, water, emergency aid and carry injured people. The next day, 15,600 troops from the Chengdu Military Region joined the rescue force. Within 2 days telephones in the major town of Wenchuan were being fixed. 100 soldiers, along with relief supplies, parachuted into inaccessible Maoxian County, northeast of Wenchuan.