Where in the world?
The flag of Eritrea comprises three triangles — a large red isosceles triangle with its base spanning the hoist end and its apex at the midpoint on the fly end, and a green and blue right-angled triangle above and beneath the red triangle. On the hoist side of the red triangle is a golden vertical olive branch encircled by a golden olive wreath.

Eritrea

Native Name: إرتريا‎

Population: 3,607,000

Region: Africa

Sub Region: Eastern Africa

Capital: Asmara

Currencies: Eritrean nakfa

Top Level Domain: .er

Languages: Arabic, English, Tigrinya

Border Countries: DjiboutiEthiopiaSudan