Premise: The Hamas-Jund Ansar Allah clash was a battle, fought between the police forces of the Islamist group Hamas controlling Gaza, and the radical Islamist group Jund Ansar Allah. The fighting began on 14 August 2009 and concluded the next day. In total, 24 people were killed in the fighting, including six Hamas police officers and an 11-year-old girl, and a further 150 were wounded.
Hypothesis: The Hamas-Jund Ansar Allah lasted for 1 day