High Quality Content by WIKIPEDIA articles! The 2012 Papua New Guinea Defence Force mutiny took place on 26 January 2012 when a group of military personnel headed by retired Colonel Yaura Sasa took the commander of the defence force, Brigadier General Francis Agwi, prisoner. The mutiny was related to a dispute over the prime ministership between Sir Michael Somare and Peter O`Neill which had begun in December 2011 when the Supreme Court of Papua New Guinea ordered that Somare be reinstated as the prime minister while the country`s parliament supported O`Neill.