The Apollo Sector, formerly known as the Apolyton Sector, was a group of nations that existed in their own diplomatic sphere between 2000 and 2001. The sector was formed around Audentior Independent Nation and the nations it was in contact with. Over its history there were over a dozen Apollo nations, the most notable being The Flying Islands of Jasonia, Audentior, The Union of Apollo States, and Treesia. Menelmacar took the name Apollo, though there was some brief controversy over if they deserved it. And after the fall of Treesia, the sector was declared officially dead.
There are those that consider the Imperial Republic of Shireroth to have at one point been an Apollo nation based on their similar citizen pool and diplomatic dealings. The official stance of the government is that Shireroth has never been a part of the Apollo Sector.