Group of 20 (G20) major economies will start a summit in India's capital on Saturday to try to find solutions to some of the world's pressing problems amid a deep geopolitical divide over the war in Ukraine that threatens any progress.
Here is a look at who is attending, who is not and who might be:
U.S. PRESIDENT JOE BIDEN
Biden has confirmed his attendance.
Biden intends to discuss the social impact of the war in Ukraine, clean energy transition, fight against climate change, and increasing the capacity of multilateral banks to fight poverty.
CHINESE PRESIDENT XI JINPING
Premier Li Qiang will lead China's delegation, effectively indicating President Xi Jinping will not attend, scuppering chances of a meeting with Biden.
This will be the first time that a Chinese president has missed a G20 leaders' summit since the first edition was held in 2008, though in 2020 and 2021, during the COVID-19 pandemic, Xi attended virtually.
RUSSIAN PRESIDENT VLADIMIR PUTIN
Foreign Minister Sergei Lavrov is representing Russia instead of President Vladimir Putin, weeks after Putin also decided not to join the BRICS summit in South Africa in-person.
Putin's absence in Africa was said to be due to an International Criminal Court (ICC) arrest warrant for him over alleged war crimes in Ukraine. The Kremlin, which strongly denies the ICC allegations, has not said why Putin will not attend the G20 gathering in India.
CANADIAN PRIME MINISTER JUSTIN TRUDEAU
Trudeau confirmed he will attend in a call with Ukraine's Volodymyr Zelenskiy, in which he also said he was disappointed that the Ukrainian president was not invited.
Last year, under Indonesia's presidency, Zelenskiy was invited to attend the summit as an observer and he made a speech to the