Where in the world?
The flag of Egypt has three horizontal stripes of red, white, and black with the national emblem in the center.

Egypt

مصر‎

Population: 102,334,403

Region: Africa

Subregion: Northern Africa

Capital: Cairo

Top Level Domain: .eg

Currencies: Egyptian pound

Border countries

The flag of Israel has a blue Star of David between two horizontal blue stripes on a white field.

Israel

Population: 9,216,900

Region: Asia

Capital: Jerusalem
The flag of Libya has a horizontal triband of red, black, and green with a white crescent and star centered on the black stripe.

Libya

Population: 6,871,287

Region: Africa

Capital: Tripoli
The flag of Sudan has three horizontal stripes of red, white, and black with a green triangle on the left side.

Sudan

Population: 43,849,269

Region: Africa

Capital: Khartoum