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The flag of Algeria has two vertical bands of green and white, with a red crescent and star centered over the boundary between the colors.

Algeria

الجزائر

Population: 44,700,000

Region: Africa

Subregion: Northern Africa

Capital: Algiers

Top Level Domain: .dz

Currencies: Algerian dinar

Border countries

The flag of Tunisia has a red field with a white circle in the center containing a red crescent and a red five-pointed star.

Tunisia

Population: 11,818,618

Region: Africa

Capital: Tunis
The flag of Libya has a horizontal triband of red, black, and green with a white crescent and star centered on the black stripe.

Libya

Population: 6,871,287

Region: Africa

Capital: Tripoli
The flag of Niger has three horizontal stripes of orange, white, and green with an orange circle in the center.

Niger

Population: 24,206,636

Region: Africa

Capital: Niamey
The flag of Western Sahara has a horizontal tricolor of black, white, and green with a red triangle on the hoist side.

Western Sahara

Population: 510,713

Region: Africa

Capital: El Aaiún
The flag of Mauritania has a green field with a gold star and crescent in the center, and two red stripes at the top and bottom.

Mauritania

Population: 4,649,660

Region: Africa

Capital: Nouakchott
The flag of Mali has three vertical stripes of green, yellow, and red.

Mali

Population: 20,250,834

Region: Africa

Capital: Bamako
The flag of Morocco has a red field with a green pentagram in the center.

Morocco

Population: 36,910,558

Region: Africa

Capital: Rabat