Russian state media footage shows the M113 armored personnel carrier driving into combat in the Zaporizhzhia region.

Secretary of State Marco Rubio said Sunday that Russian President Vladimir Putin and Ukrainian President Volodymyr Zelensky must make concessions to reach a peace deal.

Ukrainian Member of Parliament Kira Rudik joins Meet the Press NOW as President Trump tries to arrange a summit between himself, Russian President Putin and Ukrainian President Zelenskyy. NBC News Correspondents Monica Alba and Andrea Mitchell report on Russia’s reaction to the prospect of a security deal for Ukraine.

Russia’s illegal seizure of the Crimean Peninsula from Ukraine in 2014 was quick and bloodless, and it sent Moscow’s relations with the West into a downward spiral unseen since the Cold War.

Ukraine and its allies are discussing proposals, including a collective agreement similar to NATO's Article 5.

After a pair of historic summits, President Trump continues to push for a path to the end of the war in Ukraine. NBC News White House Correspondent Monica Alba, NBC News Chief Foreign Correspondent Richard Engel and former US Ambassador to Russia Michael McFaul discuss the next phase of talks.

Moscow has resisted a Putin-Zelensky summit and security guarantees for Ukraine. Trump’s claims that the Kremlin’s position has changed has left analysts puzzled.