<P> At the time of the peace agreement the United States agreed to replace equipment on a one - by - one basis . But the United States did not keep its word . Is an American's word reliable these days? The United States did not keep its promise to help us fight for freedom and it was in the same fight that the United States lost 50,000 of its young men . </P> <P> Saigon fell to the North Vietnamese army supported by Viet Cong units on April 30, 1975 . Schlesinger had announced early in the morning of April 29 the beginning of Operation Frequent Wind, which entailed the evacuation of the last U.S. diplomatic, military and civilian personnel from Saigon via helicopter, which was completed in the early morning hours of April 30 . Not only did North Vietnam conquer South Vietnam, but the communists were also victorious in Cambodia when the Khmer Rouge captured Phnom Penh on April 17, as were the Pathet Lao in Laos successful in capturing Vientiane on December 2 . Like Saigon, U.S. civilian and military personnel were evacuated from Phnom Penh, U.S. diplomatic presence in Vientiane was significantly downgraded, and the number of remaining U.S. personnel was severely reduced . </P> <Ul> <Li> Henry Cabot Lodge, Jr., former United States Ambassador to South Vietnam, led the U.S. delegation </Li> <Li> William P. Rogers, United States Secretary of State </Li> <Li> Trần Văn Lắm, Minister for Foreign Affairs for the Republic of Vietnam </Li> <Li> Nguyễn Thị Bình, Minister for Foreign Affairs for The Provisional Revolutionary Government of the Republic of South Vietnam </Li> <Li> Nguyen Duy Trinh, Minister for Foreign Affairs for The Democratic Republic of Vietnam </Li> </Ul> <Li> Henry Cabot Lodge, Jr., former United States Ambassador to South Vietnam, led the U.S. delegation </Li>

Who represented the us at the paris peace talks