It is distinct from al Qaeda in Afghanistan and Pakistan , but it is not clear how closely both the Iraqi and the South Asian al Qaeda groups cooperate . Letter from al Qaeda in Iraq militant found after he was slain , U.S. says . Letter urges al Qaeda in Iraq to fight against US - backed Sunni militias . Document also cautions vigilance against terrorism .
Letter from al Qaeda in Iraq militant found after he was slain , U.S. says . Letter urges al Qaeda in Iraq to fight against US - backed Sunni militias . Document also cautions vigilance against terrorism .