Palestinian youths jump through rings of fire during a military-style graduation ceremony after being trained at one of the Hamas-run Liberation Camps, in Khan Younis in the southern Gaza Strip January 29. Hamas's armed wing organised ‘Liberation Youths Camps’ for young Palestinians aged between 15 and 21 to prepare them to ‘confront any possible Israeli attack,’ Hamas officials said. According to organisers, some 17,000 youths graduated from these camps. - Reuters/Ibraheem Abu Mustafa