Where in the world?
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

Subregion: Eastern Africa

Capital: Lilongwe

Top Level Domain: .mw

Currencies: Malawian kwacha

Border countries

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 Tanzania has a green and blue field with a black diagonal stripe bordered by yellow.

Tanzania, United Republic of

Population: 59,734,213

Region: Africa

Capital: Dodoma
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