In 2011, the president completed the troop withdrawal from Iraq, but when he took office, his predecessor, President George W. Bush, had already signed the Status of Forces Agreement with Iraq President Nouri al-Maliki to withdraw U.S. troops by the end of 2011.

As for Afghanistan, after a meeting with Afghan President Hamid Karzai earlier this month, the president sped up a deadline to end the combat mission there, which was previously set for 2014. He said the U.S. will transition to a support role by the spring. Currently there are 68,000 troops in Afghanistan compared to 38,000 there when he came into office, but fewer than the 100,000 troops in the country in 2011.

"And for those who seek to advance their aims by inducing terror and slaughtering innocents, we say to you now that, "Our spirit is stronger and cannot be broken. You cannot outlast us, and we will defeat you."

The president's biggest foreign policy accomplishment is the killing of Osama bin Laden. But controversially, the president has greatly expanded the unmanned drone program and many of the strikes are over the border of Afghanistan and in remote areas of Pakistan. In addition, the drone strikes are extremely secretive. Investigative journalists and other watchdogs are attempting to track the strikes and conclude that there have been 300 strikes in Pakistan during the president's first term, that's one every five days, according to the Bureau of Investigating Journalism. Yemen is also a popular target of the president's drone strikes.