The Islamic State in Iraq and Syria (ISIS) terrorist group, which has been killing Christians and others who refuse to convert to Islam, has threatened to conquer the United States in the name of Allah.

ISIS has implemented Sharia (Islamic) Law in Syria and in several parts of Iraq, showing no mercy for those who do not support their cause. On Thursday, President Barack Obama authorized drone air strikes in an attempt to stop ISIS from advancing on the city of Erbil and to protect American personnel in Iraq. He also authorized humanitarian aid for thousands of Iraqis who were trapped on a mountain without sustenance.

The Daily Caller reports that ISIS has threatened to attack the United States. "I say to America, that the Islamic Caliphate has been established. And we will not stop," spokesman Abu Mosa told Vice Media. He also called the U.S. cowardly for attacking their troops with drones, rather than with soldiers. "We will humiliate [opposing forces] everywhere, God willing, and we will raise the flag of Allah in the White House," he said.

The citizens of Iraq are being coerced into practicing Islam and serving the cause of ISIS. Men, women, and children have been killed and often beheaded in the name of Allah for refusing to deny their Christian faith.

Vice Media captured footage of Islamic State leader Abu Bakr al-Baghdadi making a rare public appearance - "If you desire what Allah has promised, then set out in jihad for his cause," he told the crowd. Iraqis are being instructed to love al-Baghdadi and to support his leadership - "You have to support him by paying your money, sacrificing your life, and anything you can do," a member of ISIS can be heard telling the crowd.