Where in the world?
The flag of Namibia has a diagonal tricolor of blue, red, and green with white fimbriations, and a gold sun with 12 triangular rays in the canton.

Namibia

Population: 2,540,916

Region: Africa

Subregion: Southern Africa

Capital: Windhoek

Top Level Domain: .na

Currencies: Namibian dollar

Border countries

The flag of Angola has two horizontal bands of red and black with a yellow half gear wheel crossed by a machete and crowned with a star.

Angola

Population: 32,866,268

Region: Africa

Capital: Luanda
The flag of Botswana has a light blue field with a black horizontal stripe bordered by white in the center.

Botswana

Population: 2,351,625

Region: Africa

Capital: Gaborone
The flag of South Africa has a horizontal bicolor of red and blue with a green Y-shaped band edged in white and a black triangle on the left side.

South Africa

Population: 59,308,690

Region: Africa

Capital: Pretoria
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