US launches four airstrikes against Islamic militants in Iraq

U.S. military forces conducted four more airstrikes on Islamic militants in Iraq Saturday, taking out armored carriers firing 'indiscriminately' on civilians, US military officials said.
U.S. Central Command said the strikes on the Islamic State (IS), the militant group formerly known as ISIS, were spread out, with three before noon Eastern Time on Saturday and one at about 3 p.m.
"At approximately 11:20 a.m. EDT, a mix of U.S. fighters and remotely piloted aircraft struck one of two ISIL armored personnel carriers firing on Yazidi civilians near Sinjar, destroying the APC," a statement released late Saturday by US Central Command said.
The statement said that all indications suggested that all strikes were successful in destroying the armored vehicles, and that all aircraft left the area safely.
This is the third round of airstrikes against Islamic State forces by the U.S. military since they were authorized by President Obama to protect U.S. personnel and Iraqi religious minorities facing a possible "genocide."
The latest strikes comes as President Obama prepared Americans for a sustained military involvement in Iraq, saying the United States is ready to continue with air strikes to protect U.S. diplomats and citizens and others under attack from the Islamic State terror group. 
"I don't think we’re going to solve this problem in weeks," the president said on the South Lawn of the White House Saturday. “This is going to be a long-term project.”
The Islamic State extremists have captured hundreds of Yazidi women, according to an Iraqi official, while thousands of other civilians, including Kurds and Christians, have fled into the mountains and elsewhere as the militants in recent days have seized a string of northern towns and villages.
Yazidis belong to ancient religion seen by the Islamic State group as heretical. The extremist group considers Shiite Muslims apostates, and has demanded Christians either convert to Islam or pay a special tax.
Obama acknowledged Saturday that providing a "safe corridors" for those who face a potential “genocide” will be difficult.
"That may take some time," he said. "Moving them is not simple in this unstable environment."
The latest round of airstrikes come a day after U.S. warplanes launched two more rounds of airstrikes, taking out two mortar positions and a seven-vehicle convoy. 
The airstrikes mark the deepest U.S. engagement in the country since the troop withdrawal in late 2011. The latest mission in Iraq also has a humanitarian component. On Friday C-130 and C-17 cargo aircraft dropped 72 bundles of supplies for the refugees. Included in the aid were more than 28,000 meals and more than 1,500 gallons of water. U.S. cargo planes have also begun airlifting aid to civilians stranded in the mountains of northern Iraq after fleeing from the Islamic State group.