15 detainees transferred from Guantanamo Bay

US President Barack Obama speaks to the media after a meeting with US Secretary of Defense Ashton Carter and members of the Joint Chiefs of Staff, at the Pentagon August 4, 2016 in Arlington, Virginia.

President Barack Obama has about five months left in office, but his administration is still trying to fulfill one of its campaign promises: closing Guantanamo Bay.

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The U.S. Department of Defense announced 15 detainees were transferred from the prison to the United Arab Emirates — the largest single transfer of detainees since Obama took office.

According to The Wall Street Journal, the men will still be detained in the UAE. They'll be part of a program aiming to "de-radicalize" them, and they'll stay in the program until officials think they can be released with minimal risk.

At President Obama's directive, the Guantanamo Review Task Force has been reviewing prisoners' cases since 2009 to determine who could be transferred.

There were 242 men in Guantanamo Bay in 2009. There are now 61 detainees remaining.