Vang Pao
As Vang Pao planned a rainy season offensive during late June 1969, the People's Army of Vietnam anticipated him. In its first rainy season offensive of the Laotian Civil War, as well as its first use of tanks in northern Laos, the communists captured Muang Soui on 27 June in Campaign Thoan Thang. Making the threat more serious was the addition of seven fresh communist battalions during the past two months. That brought the total PAVN order of battle opposing Vang Pao to an unprecedented 19 battalions.