A look at where Russia has gained momentum on the battlefield, but how it could struggle to sustain it.

Secretary of State Marco Rubio, national security adviser Michael Waltz and Middle East envoy Steve Witkoff are expected to travel to Riyadh for early-stage talks.

President Trump tossing out what some would call a major carrot to Russian dictator Vladimir Putin in an apparent effort to jumpstart peace talks with Ukraine.

Talks between the United States and Russia over the war in Ukraine are set to begin Tuesday, multiple sources have told CNN.

U.S. Secretary of State Marco Rubio arrives in Saudi Arabia on Monday ahead of expected talks with Russian officials aimed at ending Moscow's nearly three-year war in Ukraine.The talks come after President Donald Trump last week spoke to Russian President Vladimir Putin by phone and ordered top officials to begin negotiations on the war,

Elsewhere, European leaders are preparing for an emergency summit in France as the continent responds to US moves on Ukraine.