Wednesday 17 February marks the fifth anniversary of Libya's revolution against the 40-year rule of dictator Muammar Gaddafi.

Five years on, Libya is plagued by instability and civil war. Battles for control of the country's main cities between militias loyal to two rival governments have internally displaced 434,869 Libyans.

A political and security vacuum in the country has allowed the Islamic State (Isis/Daesh) to create its strongest overseas franchise on the shores of the Mediterranean and amass a force of more than 6,000 fighters in the North African nation.

From its stronghold in former Gaddafi heartlands, the IS is now knocking on the door of Libya's vast oil reserves and continues to draw jihadis from across the Middle East and Africa to its growing ranks.