Portuguese President Marcelo Rebelo de Sousa will deliver his sixth and final address at the 80th United Nations General Assembly (UNGA) in New York today, Tuesday, marking the end of a cycle of interventions in which he has consistently defended multilateralism and international cooperation. According to the UN’s speaking order, Rebelo de Sousa will be the 11th head of state to address the Assembly, in the morning session in New York. Beyond his speech, Rebelo de Sousa continues a diplomatic agenda to advance Portugal’s candidacy for a non-permanent seat on the UN Security Council for the 2027–2028 term. Rebelo de Sousa’s final participation at the 80th UNGA comes less than six months before the end of his presidential mandate. President Rebelo de Sousa will remain in New York until Wednesday, when he is scheduled to participate in an open debate of the UN Security Council on artificial intelligence, international peace, and global security.