Where in the world?
The flag of Guinea-Bissau features a red vertical band on its hoist side that takes up about two-fifth the width of the field, and two equal horizontal bands of yellow and green adjoining the vertical band. A five-pointed black star is centered in the vertical band.

Republic of Guinea-Bissau

Native name: Guinea-BissauPopulation: 1,967,998Region: AfricaSub region: Western AfricaCapital: BissauTop level domain: .gwCurrencies: West African CFA francLanguages: Portuguese, Upper Guinea Creole
Border Countries:GuineaSenegal