The flag of Zimbabwe was adopted on April 18, 1980.

The soapstone bird featured on the Zimbabwean flag represents a statuette of a bird found at the ruins of Great Zimbabwe. The bird symbolises the history of Zimbabwe; the red star beneath it symbolises the revolutionary struggle for liberation and peace. The Zimbabwean flag is a National Flag of Africa.

Officially, the meanings of the colours on the flag are as follows: • Green: the agriculture and rural areas of Zimbabwe • Yellow: the wealth of minerals in the country • Red: the blood shed during the first and second Chimurenga (wars) • Black: the heritage and ethnicity of the native Africans of Zimbabwe • White Triangle: peace • Zimbabwe Bird: the national symbol of Zimbabwe • Red Star: the nation’s hopes and aspirations for the future (as well as ZANU-PF’s socialist beliefs)

The colours are used on the flag of the ruling ZANU PF party. Wikipedia