World leaders have converged on New York for the 80th session of the annual General Debate of the United Nations General Assembly, which opens on Tuesday.
U.S. President Donald Trump is billed to deliver the first speech of the high-level debate, followed by Brazilian President Luiz Inácio Lula da Silva, Turkish President Recep Tayyip Erdoğan, and French President Emmanuel Macron.
The speeches are scheduled to begin at 9 a.m. (1300 GMT).
UN Secretary General António Guterres and General Assembly President Annalena Baerbock are also to speak.
A session of the UN Security Council on the Ukraine war, which Ukrainian President Volodymyr Zelensky is expected attend, is also scheduled.
Around 150 heads of state and government are set down to speak over the week ahead, with the Middle East conflict and the war in Ukraine.
The UN’s precarious finances would not be left out, along with the changing geopolitical role of the United States under Trump.
Nigeria is represented at the summit by Vice-President Kashim Shettima, who is leading a high-powered delegation on behalf of President Bola Tinubu.
Shettima arrived in New York ahead of the opening session on Monday.