The National Flag of the Federated States of Micronesia was adopted on November 30, 1978. The National Flag of Micronesia features a light blue background with four white five-pointed stars positioned at the center and arranged in a diamond pattern. The light blue color of the flag symbolizes the Pacific Ocean. The four stars represent the four island groups that make up the Federated States of Micronesia - Chuuk, Kosrae, Pohnpei, and Yap. The flag has a width-to-length proportion ratio of 10:19. History of the Flag of Micronesia Prior to the World Wars, the Islands of Micronesia were administered by Spain (1886-1899) and Germany (1899-1914). After WWI, the islands were administered by Japan (1914-1944). During this entire period, the islands were represented by the flags of the respective administrators. In the aftermath of the WWII, the flag of the United Nations represented the islands during 1947-1965. From, 1965-1978, the flag of the Trust Territory of the Pacific Islands had represented the Islands of Micronesia. From 1944-1978, the Micronesian Islands were represented by the flag of the United States.