What is the purpose of US Secretary of State Marco Rubio's trip to Riyadh?

Marco Rubio arrived in Riyadh as part of his first trip to West Asia, which comes ahead of anticipated talks with Russian officials. These discussions are specifically aimed at ending the nearly three-year war in Ukraine, following a recent phone call between US President Donald Trump and Russian President Vladimir Putin. This diplomatic initiative fulfills a promise Trump made during his presidential campaign. The President has instructed top officials to begin negotiations to end the conflict, signaling a significant shift in US foreign policy approach toward the Ukraine situation.