U.S. and Iraqi forces on Thursday launched the largest air assault operation since the invasion of Iraq nearly three years ago, the U.S. military said. More than 50 aircraft are involved in Operation Swarmer, supporting more than 1,500 Iraqi and U.S. troops near Samarra, about 75 miles (121 kilometers) north of Baghdad. The aircraft also delivered troops from the Iraq and U.S. Army to “multiple objectives.” Full Story