At the beginning of the summer season in 1965, VC Commanders in Military Region 5 passed a resolution to launch a military operation known as the "Le Do Campaign", which was supposed to last from May 15 to August 30, 1965. The operation was aimed at ARVN military units based in the provinces of Gia Lai, Kon Tum and Quảng Ngãi. Preparations for a major military offensive was made at the beginning of 1965 when Tran Kien, Chairman of the VC Rear Services in Military Region 5, began the process of transporting soldiers and materiel into the VC areas of operation. Huynh Huu Anh, Deputy Chief of the VC Chief of Staff in Military Region 5, was responsible for conducting reconnaissance missions and air defence. PAVN Major General Chu Huy Man was sent to South Vietnam to take command of military operations.