Where in the world?
The flag of Sint Maarten has a red upper half with a white five-pointed star in the center, and a blue lower half.

Sint Maarten (Dutch part)

Sint Maarten

Population: 40,812

Region: Americas

Subregion: Caribbean

Capital: Philipsburg

Top Level Domain: .sx

Currencies: Netherlands Antillean guilder

Border countries

The flag of Saint Martin (French part) has a blue field with a white cross and a red border.

Saint Martin (French part)

Population: 38,659

Region: Americas

Capital: Marigot