1972 in the Vietnam War the number of air raids against North Vietnam during all of 1971. Prime Minister Lon Nol declared President of Cambodia. Unlike the former Cambodian leader, Norodom Sihanouk, Lon Nol was a U.S. ally. The U.S. 101st Airborne Division left South Vietnam, the last U.S. ground combat division to be withdrawn from South Vietnam. The Khmer Rouge bombarded with artillery Phnom Penh, the capital city of Cambodia, killing more than 100 civilians. This was the heaviest attack on Phnom Penh since the Cambodian Civil War began in 1970. The United States boycotted peace negotiations in Paris with the North Vietnamese, citing
Russia–Chechen Peace Treaty Russia–Chechen Peace Treaty Russian-Chechen Peace Treaty, also known as the Moscow Peace Treaty, was a formal peace treaty "on peace and the principles of Russian-Chechen relations" following the First Chechen War of 1994-1996. It was signed by the president of Russia Boris Yeltsin and the newly elected president of Chechnya Aslan Maskhadov, on May 12, 1997, at the Moscow Kremlin. The 1997 agreement was preceded by the Khasavyurt Accord signed by Maskhadov, then the chief of staff of Chechen separatist forces, and the Russian general Alexander Lebed on August 30, 1996, which had formally ended the war in Chechnya with