Islamic State poured more fighters into Ramadi as security forces and Shi'ite paramilitaries prepared to try to retake the Iraqi city, while Washington scrambled on Monday to reassure Baghdad after a U.S. official’s sharp criticism of Iraqi forces. U.S. Vice President Joe Biden spoke to Iraqi Prime Minister Haidar al-Abadi after Defense Secretary Ash Carter questioned Iraqi troops’ will to fight when Ramadi fell. The U.S. damage-control effort came as the loss of Ramadi and Palmyra in Syria put its strategy against Islamic State into question. Iraqi forces have regained ground east of Ramadi since launching a counter-offensive on Saturday, a week after it was overrun, and on Monday retook a rural area south of the city.