Jordan's King Abdullah says that the world is facing another "world war" and that there must be a swift response to the threat posed by Islamic State.
King Abdullah II of Jordan listens as US President speaks during a meeting in the Oval Office at the White House in Washington, DC, on January 17, 2012. Obama on Tuesday decried continued and 'unacceptable' levels of violence in Syria and pledged to redouble international efforts to force President Bashar al-Assad to step down. Obama also thanked King Abdullah II of Jordan in the Oval Office for being the first Arab leader to call for Assad to go, after talks which also focused on Jordanian efforts to revive Israeli-Palestinian peace talks. (AFP/Getty Images)