The PUP was the driving force behind independence and won 10 of the 12 elections since Belize first elected a legislative assembly under British rule in 1954.
In the last years of Mr Musa's government the PUP had been rocked by allegations of corruption.
The biggest single ethnic group is the Mestizos, who are of mixed Maya Indian and Spanish ancestry.The eastern border is demarcated by a surveyed line through the jungle separating Belize from the El Peten Department of Guatemala.To the south, the Belize/Guatemalan border is the Rio Sarstoon which flows east to the Caribbean Sea.In addition to its strong ties with Britain and the United States, Belize has recently also forged closer links with Latin American countries such as Mexico and Venezuela.In common with many Caribbean economies, the service sector has overtaken agriculture, fishing and forestry. Belize's attractions include wildlife, Mayan ruins and one of the longest barrier reefs in the world. Cruise ship arrivals have seen a massive increase in recent years.There were 60,000 internet users by September 2009 (Internetworldstats).