These are some ideas for flags of separatist and irredentist movements

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  Falkland Islands/ Islas Malvinas

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  Atacama Department/ Bolivia Pacific Ocean access

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  Gorno-Badakhshan, Tajikistan
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• Kachin, Burma
  Kachin, Burma
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  Sagaing District, Sagaing, Burma

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• File:Jammu Kashmir Liberation Front Flag with question mark.svg
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  Presheva Valley, Serbia
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  Albanians in Montenegro

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  Somalis in Kenya
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  Derbent, Dagestan
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  Borchali, Georgia

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  West Bengal
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  Tripura
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  Assam
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  Rakhine, Burma

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  Assam
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  East Timor

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  Dagestan
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• File:Kokbayraq Flag with question mark.svg
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  Pashtunistan
• File:Balochistan Flag with question mark.svg

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  Al-Hasa, Saudi Arabia
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  Arabistan/ Ahwaz

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  Goguryeo - Manchuria

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  Dzungaria/ Oirats
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  Altai Republic