| Flag of Westarctica | |
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| Adopted | (unknown) |
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| Designed by | (unknown) |
| Proportions | (unknown) |
The flag of the Grand Duchy of Westarctica is a blue background with a white Nordic Cross and a white depiction of a crown in the canton. It is a micronation claiming land on Antarctica.
 Liberland ● Lostisland ●  Lovely ●  Molossia ●  Rain Kingdom ●  Robland ●  Sealand ●  Westarctica
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