Where in the world?
The flag of Brunei Darussalam has a yellow field with two diagonal bands of white and black and a red crest in the center.

Brunei Darussalam

Negara Brunei Darussalam

Population: 437,483

Region: Asia

Subregion: South-Eastern Asia

Capital: Bandar Seri Begawan

Top Level Domain: .bn

Currencies: Brunei dollar

Border countries

The flag of Malaysia has 14 horizontal stripes of red and white, with a blue canton containing a yellow crescent and a 14-point star.

Malaysia

Population: 32,365,998

Region: Asia

Capital: Kuala Lumpur