South-Eastern Asia
Thailand
A horizontal striped flag of red, white, blue, white, and red, with the central blue band twice the width of each of the others. It was adopted in 1917 during the reign of King Vajiravudh and is known as the Trairanga, or 'tricolour'.
All flagsAsia
Adopted
1917
Proportion
2:3
Colours
3
Colours & their meaning
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Red
The nation and the blood shed to protect it.
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White
Religion, especially Buddhism, and purity.
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Blue
The monarchy.
Did you know?
The blue central stripe was added during World War I, partly to align Thailand’s flag colours with those of its Allies.