1954 in the Vietnam War states at the 17th parallel of latitude. Ngô Đình Diệm became Prime Minister of South Vietnam and Ho Chi Minh became President of North Vietnam. Diệm overcame an early challenge to his rule from army leaders and the Hòa Hảo and Cao Đài religious sects. The United States pledged its support to the Diệm government and began to replace France as the principal foreign power involved in South Vietnam. China and the Soviet Union began to provide economic assistance to North Vietnam. 12 January Emperor and Chief of State Bảo Đại appointed Bửu Lộc as Prime Minister of Vietnam. 29
Geneva Agreement (1966) contention that the "Arbitral Award of 1899 about the frontier between British Guyana and Venezuela is null and void", followed by Venezuela declaring ownership of a large portion of Guyana's territory. The Geneva Agreement was published in the Nº 28.008 Official Gazette of Venezuela of 15 April 1996 and subsequently registered by this same country on 5 May 1966 in the General Office of the Organization of the United Nations under registration number Nº I-8192. Three months later after signing the agreement, on 26 May 1966, the British Guyana colony receives the independence, being called from then on "Republic of