Islamic State militants wearing Iraqi military uniforms and suicide vests attacked an Iraqi air base where U.S. military advisers are training Iraq’s security forces, the most direct attack on a base used by U.S. forces since the current conflict began. The attack came a day after Islamic State militants took control of a town near the base, the first new territorial gain by the group in Iraq in many weeks, officials said. On Friday, a group of 20 to 25 Islamic State militants, many dressed in Iraqi army uniforms, attacked the edge of the huge al-Asad Air Base before being repelled by Iraqi security forces, said Rear Adm. John Kirby, the Pentagon […]