Qatar's Sheikh Abdullah bin Nasser bin Khalifa Al Thani

Qatar's Sheikh Abdullah bin Nasser bin Khalifa Al Thani

Fethi Belaid/AFP via Getty Images

Qatar's Sheikh Abdullah bin Nasser bin Khalifa Al Thani, a graduate of Durham Military College in the U.K. and Beirut University, served as commander of Qatar’s internal security forces and chairs the country’s anti-terrorism committee, according to his official biography.