A real country, but it does not exist on the map

"Leonard Casley" established the "Hutt River" state in 1970 in Australia, where he settled his farm and declared his independence, but the Australian government did not care about the matter. Then he declared war against Australia, giving him no interest, so he issued a statement declaring his victory in the war after Australia withdrew because of its fear of his country. Then he went For the United Nations to recognize his state and officially adopt it as a real country, but they refused and he sent 3 people to Dubai and rented an apartment there and considered it his embassy, but they were arrested later by the Dubai Police