From left, U.S. Middle East envoy Steve Witkoff, Secretary of State Marco Rubio, National Security Advisor Mike Waltz, Saudi Arabia's Foreign Minister Prince Faisal bin Farhan al-Saud, National Security Advisor Mosaad bin Mohammad al-Aiban, the Russian president's foreign policy advisor Yuri Ushakov, and Russia's Foreign Minister Sergei Lavrov meet in Saudi Arabia on Tuesday. Not invited: anyone from Ukraine. (AFP/Getty Images)