Nauru has no the capital
As mentioned above, Nauru is a country without a capital. The island is divided into 14 districts and has no official capital. Some sources claim that Yaren is the capital of this island nation, but that is not true. In fact, the island has no capital and no cities. Yaren is just an area on the southern coast of the island. This is where most of the important administrative buildings are located, from the National Assembly Building to the international airport. Because the area in Nauru is so small, the airport runway almost stretches across the entire island. Some documents claim, that Nauru is the only country without an official capital.
It is also one of 16 countries that do not have an armed force, only a small police force. Australia is responsible for keeping the island safe. When it was first established, the island contained large reserves of high-quality phosphate rock, formed from seabird droppings that have accumulated over thousands of years. But due to over-exploitation, this resource is exhausted, causing the country's finances to plunge. Currently, Nauru's GDP is the second-lowest in the world, just higher than Tuvalu.