Obama orders airstrikes in Syria for the first time to root out ISIS

Washington: Opening a new military front in the Middle East, President Barack Obama authorized US airstrikes inside Syria for the first time on Wednesday night, along with expanded strikes in Iraq as part of a broad mission to root out the violent Islamic State militants whose reign of terror has spread across both countries.

"We will hunt down terrorists who threaten our country, wherever they are," Obama declared in a prime-time address to the nation from the White House. "This is a core principle of my presidency: If you threaten America, you will find no safe haven."

Obama announced that he was dispatching nearly 500 more US troops to Iraq to assist that country's besieged security forces, bringing the total number of American forces sent there this summer to more than 1,000. He also called on Congress to authorize a program to train and arm Syrian rebels who are fighting both the Islamic State militants and Syrian President Bashar Assad.

Obama's plans amounted to a striking shift for a president who rose to political prominence in part because of his early opposition to the Iraq war. While in office, he has steadfastly sought to wind down American military campaigns in the Middle East and avoid new wars - particularly in Syria, a country where the chaos of an intractable civil war has given the Islamic State space to thrive and move freely across the border with Iraq.

Speaking on the eve of the anniversary of the September 11, 2001, attacks, Obama's plans were also an admission that years of American-led war in the Middle East have not quelled the terror threat emanating from the region.

Obama insisted he was not returning US combat troops to the Middle East. Even so, he acknowledged that "any time we take military action, there are risks involved, especially to the servicemen and women who carry out these missions."

"But I want the American people to understand how this effort will be different from the wars in Iraq and Afghanistan. It will not involve American combat troops fighting on foreign soil," he added.