Siege of Iraqi town broken; U.S. lawmakers demand ISIS strategyBy Jomana Karadsheh, Barbara Starr and Holly Yan, CNN Updated 8:46 AM ET, Mon September 1, 2014Just WatchedISIS siege of Iraqi town brokenreplayMore Videos ...ISIS siege of Iraqi town broken 01:32Story highlights U.S. lawmakers call on President Barack Obama for ISIS strategyIraqi forces break terrorist seige of the town of AmerliThe U.S. dropped aid for the Iraqi town, which was surrounded by ISISAustralia, France and the UK also participated in the aid dropIraqi security and volunteer forces have broken the siege of Amerli and have entered the town, retired Gen. Khaled al-Amerli, an Amerli resident and member of its self-defense force, told CNN on Sunday.Iraqi state TV also reported that the siege had been broken.The news prompted a wave of celebrations across the town, which had been besieged by fighters from the terror group ISIS. Residents waved the Iraqi flag and fired celebratory shots into the air, al-Amerli said. "Today is a day of victory for Iraq and the resilient people of Amerli," the retired general said. The breakthrough came after the United States said it carried out airstrikes and dropped humanitarian aid in Amerli to protect an ethnic minority that one official said faced the threat of an "imminent massacre." Amerli is home to many of Iraq's Shiite Turkmen.Just WatchedISIS vs. al Qaeda: How they're differentreplayMore Videos ...ISIS vs. al Qaeda: How they're different 02:03PLAY VIDEOJust WatchedSiege of Iraqi town brokenreplayMore Videos ...Siege of Iraqi town broken 03:25PLAY VIDEOJust WatchedWaves of refugees flee to northern IraqreplayMore Videos ...Waves of refugees flee to northern Iraq 02:40PLAY VIDEOJust WatchedYazidi refugees desperate for helpreplayMore Videos ...Yazidi refugees desperate for help 02:51PLAY VIDEOJust WatchedISIS massacre survivors speak outreplayMore Videos ...ISIS massacre survivors speak out 03:18PLAY VIDEOAustralia, France and the UK also participated in the aid drop.The U.S. military conducted "coordinated airstrikes" against ISIS targets as part of an effort to support the humanitarian operation, Pentagon press secretary Rear Adm. John Kirby said. Video released by the Iraqi Ministry of Defense was strikingly similar to the scenes of the dire situation faced by the Yazidis, who were trapped on Mount Sinjar by ISIS earlier this month. Dozens of people crowded helicopters, hoping to be rescued. Scores more waited in the scorching summer sun for the arrival of lifesaving supplies.ISIS fighters had surrounded Amerli, 70 miles north of Baquba, since mid-June. The town's fewer than 20,000 residents have been without power."Residents are enduring harsh living conditions with severe food and water shortages, and a complete absence of medical services -- and there are fears of a possible imminent massacre," U.N. High Commissioner for Human Rights Navi Pillay said last week.ISIS has called the Shiite Turkmen heretics and vowed to push them out.Turkmen are descendants of a Turkic-speaking, traditionally nomadic people, who share cultural ties with Turkey. There are Sunni and Shiite Turkmen in Iraq, and they account for up to 3% of Iraq's population. Turkmen have been subjected to violence before at the hands of Sunni extremists. Sen. John McCain, R-Arizona, is calling on President Barack Obama and his administration to address the threat posed by the Islamic State in Iraq and Syria. "We have to have a clear strategy dictated by a policy and that policy has to be we have to defeat ISIS, not contain, not stop, but defeat ISIS, because they are a direct threat over time to the United States of America," McCain said Sunday on CBS' "Face the Nation."McCain was referring to the controversy that erupted last week after the President admitted on Thursday "we don't have a strategy, yet" for airstrikes against ISIS targets in Syria. Dianne Fienstein, McCain's Senate colleague and chair of the Intelligence Committee Democratic senator, also urged the Obama administration Sunday to devise a strategy for confronting ISIS.Feinstein said on NBC's "Meet the Press" Sunday that ISIS is one of the most vicious terrorist movements ever. "I think I've learned one thing about this president, and that is he's very cautious. Maybe in this instance too cautious. I do know that the military, I know that the state department, I know that others have been putting plans together. And so hopefully those plans will coalesce into a strategy that can encourage that coalition." Iraqi forces under a Shiite-led regime, as well as ethnic Kurdish forces, have been battling ISIS, which this year took over large portions of northern and western Iraq and eastern Syria for what it calls its new caliphate.Well before ISIS made gains, Iraq was beset for years by sectarian violence, with Sunnis feeling politically marginalized under a Shiite-led government since the U.S.-led ouster of longtime leader Saddam Hussein in 2003.What is ISIS?Kerry: 'The cancer of ISIS will not be allowed to spread'ISISISIS governor killed in airstrikes The latest ISIS-appointed governor of Mosul was killed in coalition airstrikes on Christmas Day, according to Iraqi police. Author's journey inside ISISAuthor Juergen Todenhoefer says ISIS are "more dangerous than people realize."The Pentagon has a new name for ISISThere's yet another new name for ISIS among those fighting against the terror group. Daesh. FBI warns military of ISIS threatThe FBI warns U.S military that ISIS are looking for individuals who may be interested in carrying out attacks on home soil.Iraqi army's 'ghost' soldiersIraq's Prime Minister says there is evidence of 50,000 soldiers being paid while inactive.Pentagon insider may lead war on ISISPentagon insider Ashton Carter is expected to be President Barack Obama's nominee for Defense Secretary.U.S. seeks strategy reviewWolf Blitzer talks to Rep. Ed Royce about the White House's new ISIS strategy that involves removing Bashar al-Assad.Child fighter tormented by ISIS Just two weeks ago, Yasir was regularly strapped into an explosive vest and handed guns and a radio to stand guard at an ISIS base in Syria.Jihadi Janes try to join ISISHow did three U.S. teenagers become radicalized? CNN's Pamela Brown reports.Why is ISIS so attractive to recruits?Reza Aslan examines the appeal of ISIS and why the group is able to successfully attract so many recruits.This is how ISIS indoctrinates kids CNN's Nick Paton Walsh takes a look at how ISIS is using media to desensitize children. Travel ad or pro-ISIS video?A new propaganda video from ISIS features a Canadian ISIS member who died in combat.ISIS: Everything you need to knowExplore CNN's interactive that explains ISIS' roots, what it controls, and where its support comes from.More from middleeastISIS launches attack on oil-rich northern Iraqi city of KirkukHow ISIS' new hostage strategy is shifting the goalpostsWho is Jordanian pilot Moaz al-Kassasbeh, captured by ISIS?