Ayman al-Zawahiri calls for truce between Jabhat al-Nusra , Islamic State of Iraq and Syria . He orders ISIS to focus on Iraq , where violence has reached the highest levels in years . An audio message believed to be from al Qaeda leader Ayman al-Zawahiri sought to halt infighting among jihadist groups in Syria , urging them instead to turn their arms against Shiites . - The U.S. military says it is investigating a series of attacks by militants against American troops in Iraq.
Ayman al-Zawahiri calls for truce between Jabhat al-Nusra , Islamic State of Iraq and Syria . He orders ISIS to focus on Iraq , where violence has reached the highest levels in years . - The U.S. military says it is investigating a series of attacks by militants against American troops in Iraq.