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The beheading of 21 Egyptian Christians on a Libyan beach has exposed the lawlessness of the country ruled by Colonel Gaddafi until 2011. The internationally-recognised government is trying, without much success, to run the country from the eastern city of Tobruk. In Tripoli, another body claims to be the legitimate government. But is the real power struggle between the militias associated with each group – and where does the so-called Islamic State fit in? With neighbours near and far getting involved to push their own agendas, we investigates the forces operating in Libya and what they want.

(Image: A Libyan man waves his national flag. Credit: Abdullah Doma/AFP/Getty Images)