Flag of Sudan

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 Flag ratio: 1:2
Flag ratio: 1:2
Former flag (1956-1970)
Former flag (1956-1970)

The flag of Sudan (Arabic: علم السودان‎) was adopted on May 20, 1970, and consists of a red-white-black tricolor with a green triangle next to the hoist. Prior to the 1969 military coup of Gaafar Nimeiry, a blue-yellow-green tricolor design was used.

The current flag strongly resembles the flag of Libya from time period of 1969-1972, except for the green triangle.