BAGHDAD -- America's top military leader arrived in Iraq on Saturday, state television reported, making his first visit to the country since a U.S.-led coalition began a campaign of airstrikes targeting the Islamic State of Iraq and Syria (ISIS). The visit by Army Gen. Martin Dempsey, chairman of the U.S. Joint Chiefs of Staff, was not previously announced. It came just two days after he told Congress that the United States would consider dispatching a modest number of American forces to fight with Iraqi troops against ISIS, which controls about a third of Iraq and neighboring Syria. The Iraqi military and security forces, trained by the U.S. at the cost of billions of dollars, melted away in the face of the extremist group's stunning offensive this summer, when it captured most of northern and western Iraq, including the country's second-largest city Mosul. Dempsey said Thursday that Iraqi forces were doing a better job now, although an effort to move into Mosul or to restore the border with Syria would require more complex operations. More in The fight against ISIS He also told the U.S. House Armed Services Committee that America has a modest force in Iraq now, and that "any expansion of that, I think, would be equally modest." "I just don't foresee a circumstance when it would be in our interest to take this fight on ourselves with a large military contingent," he said. Dempsey's visit comes just one day after Iraqi forces drove ISIS militants out of a strategic oil refinery town north of Baghdad, scoring their biggest battlefield victory yet. The recapture - http://pixabay.com/en/new-zealand-waterfall-nature-recapture/ of Beiji is the latest in a series of setbacks for the jihadi group, which has lost hundreds of fighters to U.S. -led coalition - http://www.internetbillboards.net/?s=-led%20coalition airstrikes in Iraq and Syria, particularly in the group's stalled advance on the Syrian town of Kobani. On Friday, activists there reported significant progress by Kurdish fighters defending the town. Meanwhile on Saturday, two parked car bombs exploded minutes apart north of Baghdad, 계룡출장안마 - https://www.opmassage.com/10-kyeryong targeting a checkpoint staffed by army soldiers and security forces, authorities said. The blast killed six people and wounded 25, police and hospital officials said. They spoke on condition of anonymity because they were not authorized to brief journalists. In a recording released days after he was reported to be wounded in an airstrike, the leader of ISIS purportedly said the U.S.-led coalition's campaign had failed and it would eventually have to send ground troops into battle. Abu Bakr al-Baghdadi urged his followers to "explode the volcanoes of jihad everywhere," according to the 17-minute message posted online Thursday. The recording appeared authentic, matching previous ones from the group, though it has not been independently confirmed. Meanwhile, in a rare interview, Director of National Intelligence James Clapper told "Face the Nation" moderator Bob Schieffer that he does not think ISIS and al Qaeda have joined forces in Syria. It's the first time a senior intelligence official has commented on such reports. "We don't see that," he said. "There have been tactical accommodations on the battlefield, on occasion, where local groups have united in the interest of a tactical objective, but broadly, I don't see those two uniting, at least yet."