Republic of Maldives (Second Republic)
Who & why: after a March 1968 referendum abolishes the restored Sultanate, Ibrahim Nasir — already prime minister and the architect of 1965 independence — becomes the first president of the Second Republic on 11 November 1968. Maumoon Abdul Gayoom succeeds him in 1978 and governs for three decades; multiparty democracy follows in the 2000s, and the country navigates the 2004 Indian Ocean tsunami, sea-level-rise diplomacy, and a modern tourism-driven economy into the present.
What it represents: the flag adopted at 1965 independence carries over unchanged into the Republic and is fixed in the 1968 and later constitutions: a red field for the blood of those who defended the nation, a green rectangle for peace and prosperity, and a white crescent for Islam, the state religion.