خليفة بن حمد آل ثاني
Upon graduating from RMA Sandhurst in 1977, Sheikh Abdullah returned to Qatar and was appointed lieutenant in the Qatari police. He left the police sometime during the reign of his uncle Emir Sheikh Khalifa bin Hamad Al Thani. Later in 1992 he was appointed minister of Islamic affairs, a post he held until 1995. During the reign of his cousin Sheikh Hamad bin Khalifa Al Thani, he was appointed minister of interior.