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The flag of Thailand has five horizontal stripes of red, white, blue, white, and red with the blue stripe being twice as wide as the other stripes.

Thailand

ประเทศไทย

Population: 69,799,978

Region: Asia

Subregion: South-Eastern Asia

Capital: Bangkok

Top Level Domain: .th

Currencies: Thai baht

Border countries

The flag of Myanmar has a horizontal tricolor of yellow, green, and red with a white five-pointed star in the center.

Myanmar

Population: 54,409,794

Region: Asia

Capital: Naypyidaw
The flag of Cambodia has a blue field with a red stripe in the center and a white depiction of Angkor Wat in the middle.

Cambodia

Population: 16,718,971

Region: Asia

Capital: Phnom Penh
The flag of Laos has three horizontal stripes of red, blue, and red, with a white disc in the center of the blue stripe.

Lao People's Democratic Republic

Population: 7,275,556

Region: Asia

Capital: Vientiane
The flag of Malaysia has 14 horizontal stripes of red and white, with a blue canton containing a yellow crescent and a 14-point star.

Malaysia

Population: 32,365,998

Region: Asia

Capital: Kuala Lumpur