World War I the war as being when the Versailles Treaty was signed in 1919, which was when many of the troops serving abroad finally returned home; by contrast, most commemorations of the war's end concentrate on the armistice of 11 November 1918. Legally, the formal peace treaties were not complete until the last, the Treaty of Lausanne, was signed. Under its terms, the Allied forces left Constantinople on 23 August 1923. After the war, the Paris Peace Conference imposed a series of peace treaties on the Central Powers officially ending the war. The 1919 Treaty of Versailles dealt with Germany and, building
1955 in the Vietnam War former colonial ties to France. The United States closed its embassy in Hanoi, thus ending formal diplomatic relations with North Vietnam. The U.S. would not restore diplomatic relations until 1998. China informed North Vietnam that all members of the China Military Advisory Group, which had been in Vietnam since July 1950, would return to China. This action by China illustrated the Chinese view that the most important task of North Vietnam was to consolidate its rule rather than attempt to force reunification with South Vietnam. 1955 in the Vietnam War In 1955, the Prime Minister of South Vietnam Ngô Đình