A force of 4,000 South Vietnamese and 2,000 Cambodian soldiers battle 1,400 communist troops for control of the provincial capital of Kompong Speu, 30 miles southwest of Phnom Penh. At 50 miles inside the border, it was the deepest penetration that South Vietnamese forces had made into Cambodia since the incursion began on April 29. The town was captured by the communists on June 13, but retaken by Allied forces on June 16. South Vietnamese officials reported that 183 enemy soldiers were killed, while 4 of their own died and 22 were wounded during the fighting. Civilian casualties in Kompong Speu were estimated at 40 to 50 killed.