Terror Groups That Did Not Make It

The Flag of  Al Maq'ada;
Sometimes referred to as Al Qa'da.

This is from the same  3 letter root    q  '  d    as   Al Qa'ida.

Al Qa'ida means "base, foundation, that which something rests upon,  etc." , whereas  maq'ada literally means "sitter, that which is doing the sitting";  that is, posterior, buttocks, etc.
There were factions back in the 1990s which wanted Al Maq'ada as the official name, but they lost out, and sort of sat on their hands since.

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