Where in the world?
The flag of South Sudan is composed of three equal horizontal bands of black, red with white top and bottom edges, and green. A blue equilateral triangle which spans about two-fifth the width of the field is superimposed on the hoist side with its base on the hoist end of the field. At the center of this triangle is a five-pointed yellow star.

South Sudan

Native Name: South Sudan

Population: 11,193,729

Region: Africa

Sub Region: Middle Africa

Capital: Juba

Currencies: South Sudanese pound

Top Level Domain: .ss

Languages: English

Border Countries: Central African RepublicSudanEthiopiaUgandaKenyaDR Congo