Whose flag is this?

this nation’s flag was adopted officially in 1963, after it gained independence from its colonial ruler, Britain.

The black, red and green colours of the flag are based on those used by the main political party which led the fight for freedom and independence.

After this was won, the white was added to symbolise peace and unity, and the shield was also included, which is based on the shape and design of traditional Maasai shields.

Do you know whose flag this is?