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 The U.S. 101st Airborne Division left South Vietnam, the last U.S. ground combat division to be withdrawn from South Vietnam.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
Treaty of Shimonoseki renewed and modernized Japanese military, which led to a major defeat for Russia that marked the beginning of the end for the Romanov dynasty. Treaty of Shimonoseki The was a treaty signed at the Shunpanrō hotel, Shimonoseki, Japan on 17 April 1895, between the Empire of Japan and the Qing Empire, ending the First Sino-Japanese War. The peace conference took place from March 20 to 17 April 1895. This treaty followed and superseded the Sino-Japanese Friendship and Trade Treaty of 1871. The treaty ended the First Sino-Japanese War of 1894–1895 as a clear victory for Japan. In this treaty, China