1846
See the Thornton Affair.
What is disputed
The Rhododendron niveum is the national tree of the disputed territory of Sikkim.
The U.S. interpreted the skirmish near the Rio Grande, which occurred in April 1846, as an act of aggression by Mexico, justifying further military action. General Zachary Taylor's deployment of troops into the disputed territory was seen as a legitimate defense of American interests and territory. This incident ultimately contributed to the U.S. declaration of war against Mexico, as it was framed as a violation of American sovereignty. The belief that American blood had been shed on American soil galvanized public support for the war.
They sent troops into the disputed territory and when troops are in harms way the inevitable invariably happens. Men died and the casus belli existed for a Declaration of War by the US Congress.
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.
The Noble Orchid (Cymbidium goeringii) is the national flower of the disputed territory of Sikkim.
The Yak is the animal 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 Aquilegia pubiflora is the flower un officially representing the Gilgit-Baltistan Disputed territory.
The Quercus ilex is the tree un officially representing The Gilgit-Baltistan Disputed territory.