Where in the world?
The flag of Tanzania has a green and blue field with a black diagonal stripe bordered by yellow.

Tanzania, United Republic of

Tanzania

Population: 59,734,213

Region: Africa

Subregion: Eastern Africa

Capital: Dodoma

Top Level Domain: .tz

Currencies: Tanzanian shilling

Border countries

The flag of Burundi has a white field with a red diagonal cross, green and red areas, and a white disk with three red stars in the center.

Burundi

Population: 11,890,781

Region: Africa

Capital: Gitega
The flag of the Democratic Republic of the Congo has a sky blue field with a yellow star in the upper hoist-side corner and a diagonal red stripe with a thin yellow border from the lower hoist-side to the upper fly-side.

Congo (Democratic Republic of the)

Population: 89,561,404

Region: Africa

Capital: Kinshasa
The flag of Kenya has three horizontal stripes of black, red, and green, separated by white edges, with a red, white, and black Maasai shield and two crossed spears in the center.

Kenya

Population: 53,771,300

Region: Africa

Capital: Nairobi
The flag of Malawi has three horizontal stripes of black, red, and green, with a red rising sun centered on the black stripe.

Malawi

Population: 19,129,955

Region: Africa

Capital: Lilongwe
The flag of Mozambique has a horizontal tricolor of green, black, and yellow with white fimbriations, and a red triangle at the hoist containing a yellow star with a book and an AK-47 rifle.

Mozambique

Population: 31,255,435

Region: Africa

Capital: Maputo
The flag of Rwanda has three horizontal stripes of blue, yellow, and green with a sun in the top right corner.

Rwanda

Population: 12,952,209

Region: Africa

Capital: Kigali
The flag of Uganda has six horizontal stripes of black, yellow, and red with a white circle in the center containing a grey crowned crane.

Uganda

Population: 45,741,000

Region: Africa

Capital: Kampala
The flag of Zambia has a green field with an orange eagle in flight over a rectangular block of three vertical stripes of red, black, and orange in the lower right corner.

Zambia

Population: 18,383,956

Region: Africa

Capital: Lusaka