The secret mission left the smallest number of prisoners at Guantánamo Bay since the day the detention center opened in 2002.

The United States sent 11 Yemeni detainees at the Guantanamo Bay detention facility to Oman, the Pentagon said on Monday, leaving just 15 people at the infamous detention centre.

Situated in larger Horn of Africa with hundreds of miles of coastline along the Gulf of Aden, bordering Ethiopia to the south ...