Libya Greek cities were established in the area that became known as Cyrenaica. In 525 BC the Persian army of Cambyses II overran Cyrenaica, which for the next two centuries remained under Persian or Egyptian rule. Alexander the Great was greeted by the Greeks when he entered Cyrenaica in 331 BC, and Eastern Libya again fell under the control of the Greeks, this time as part of the Ptolemaic Kingdom. After the fall of Carthage the Romans did not immediately occupy Tripolitania (the region around Tripoli), but left it instead under control of the kings of Numidia, until the coastal cities
Cyrenaica Tripolitania and Fezzan remained under Gaddafi's government control. Some proposed a "two-state solution" to the conflict, with Cyrenaica becoming an independent state, but this concept was strongly rejected by both sides, and the three regions were united again in October 2011, as rebel forces took Tripolitania and Fezzan and the government collapsed. Although a historical region, Cyrenaica has not had an official central government of its own for decades. Its individual provinces have reported directly to the central government in Tripoli. On 20 July 2011, The First National Conference for Federalism offered proposals for ways to quickly achieve stability in