While their attacks on Saigon had been quickly repulsed, in early March, more than 20 VC battalions remained near Gia Định Province, threatening Saigon. While most of these units had suffered heavy losses in the offensive, their continued presence applied pressure on Saigon and prevented the reestablishment of South Vietnamese Government control. From 11 March to 7 April, Allied forces launched Operation Quyet Thang to pacify the area around Saigon. The operation was considered a success and the U.S. claimed 2,658 VC killed and 427 captured. It was followed immediately by Operation Toan Thang I (8 April - 31 May) which expanded the security operation across III Corps and resulted in a further 7645 VC killed and 1708 captured for South Vietnamese losses of 708 killed, U.S. losses of 564 killed and other Allied losses of 23 killed.