"The nomination of Guterres, a male from Western Europe, came despite many calls for the role of secretary-general to go to a woman or individual from Eastern Europe. He has said, however, that more "gender parity" is necessary in the organization and named Amina J. Mohammed, Nigeria's former environment minister, as his deputy. In the decade he served as U.N. high commissioner for refugees, from 2005 to 2015, Guterres led the U.N. response to major crises in Syria, Ukraine, Gaza and others. The leader of Portugal's socialist party, Guterres was elected to two terms as prime minister using "heart and reason" as his campaign slogan."