The attempted French re-colonization of Vietnam following World War II culminated in a decisive French defeat at the Battle of Dien Bien Phu. The Geneva Conference (April 26 – July 20, 1954) discussed the possibility of restoring peace in Indochina, and temporarily separated Vietnam into two zones, a northern zone to be governed by the Việt Minh, and a southern zone to be governed by the State of Vietnam, then headed by former emperor Bảo Đại. A Conference Final Declaration, issued by the British chairman of the conference, provided that a general election be held by July 1956 to create a unified Vietnamese state. Although presented as a consensus view, this document was not accepted by the delegates of either the State of Vietnam or the United States. In addition, China, the Soviet Union and other communist nations recognized the North while the United States and other non-communist states recognized the South as the legitimate government. By the time Westmoreland became army commander in South Vietnam, the option of a Korea-type settlement with a large demilitarised zone separating north and south, favored by military and diplomatic figures, had been rejected by the US government, whose objectives were to achieve a decisive victory, and not to use vastly greater resources. The infiltration by regular North Vietnam forces into the South could not be dealt with by aggressive action against the northern state because intervention by China was something the US government was concerned to avoid, but President Lyndon B. Johnson had given commitments to uphold South Vietnam against communist North Vietnam.