artillery and aerial rocket fire, arranged from a distance and directed by local observers. The new tactics had been developed in the U.S. by the 11th Air Assault Division (Test), which was renamed as the 1st Cavalry Division (Airmobile). The division's troopers dubbed themselves the "Air Cav" (Air Cavalry) and in July 1965 began deploying to Camp Radcliff, An Khê, Vietnam. By November, most of the division's three brigades were ready for operations. The U.S. deployment caused the B3 Field Front Command to bring forward an attack on the U.S. Army Special Forces Plei Me camp, some 45 km southwest of Pleiku, which was originally planned for December. The assault was instead launched October 19 with only two Regiments, the 32nd and 33rd, instead of the planned three, before the Air Cavalry troops were combat ready. The plan was to attack the camp with the 33rd Regiment while the 32nd Regiment would lie in wait to ambush the ARVN relief force that would inevitably be sent from Pleiku. Once the relief force was destroyed, the two regiments were to join and take the camp. The initial attack was repulsed with the help of strong air support, and a small relief force reinforced the camp on the morning of the 22nd. The main relief force, advancing south from Pleiku on route 6C, was duly ambushed at 18:00 the next day. After a two-hour battle the ambushing forces were beaten off, but the ARVN, discouraged from moving any further, set up a defensive position, and did not reach the camp at Plei Me until dusk on the 25th. The PAVN forces withdrew west towards the Chu Pong Massif. At the end of October, after the siege of Plei Me was lifted, General Westmoreland ordered General Harry Kinnard to take his division on to the offensive and seize the initiative in Pleiku province. Initial operations were conducted by 1st Brigade, and on November 1 they captured a PAVN aid station south west of Plei Me. Further engagements over the next few days revealed the arrival of the PAVN 66th Regiment. Having taken increasing casualties, 1st Brigade was relieved by 3rd Brigade, the handover being completed over the period November 7–12. On November 11, intelligence source revealed the disposition of the three PAVN regiments: the 66th at vicinity YA9104, the 33rd at YA 940010 and the 32nd at YA 820070. On November 12, the