It is currently part of France. Historically, it is disputed territory that changed hands between Germany and France scores of times.
the New Hampshire grants aka new Connecticut alias vermont
The Rhododendron niveum is the national tree of the disputed territory of Sikkim.
The Noble Orchid (Cymbidium goeringii) is the national flower of the disputed territory of Sikkim.
The Blood pheasant (Ithaginis cruentus) is the national bird of the disputed territory of Sikkim.
The Red panda (Ailurus fulgens) is the national animal of the disputed territory of Sikkim.
On January 18th of 1862, the Confederacy lay claims to a disputed area in southern New Mexico. They renamed it the Territory of Arizona.
France
The Yak is the animal un officially representing the Gilgit-Baltistan Disputed territory.
The Aquilegia pubiflora is the flower un officially representing the Gilgit-Baltistan Disputed territory.
The total area of the Disputed Indian occupied Pakistani territory of Junagadh was 8,643 km² (3,337 mi²).
The Quercus ilex is the tree un officially representing The Gilgit-Baltistan Disputed territory.