Flags of non-sovereign nations

Depending on the context the term flags of non-sovereign nations, it could mean:

Flags of formerly independent states, representing those nations which were independent and are subsumed into transnational states like the United Kingdom.
Flags of active autonomist and secessionist movements, representing those nations which are currently part of a transnational state but would like to secede from the state.
Flags of unrecognized states, representing those states which have declared independence, but whose independence has not been recognised by the majority of the international community.

List of non-sovereign nations:

See also