Russian President Vladimir Putin is due to meet the US special envoy Steve Witkoff in Moscow later for talks on Donald Trump's peace plan for Ukraine.
Initial proposals - which were criticised for being too weighted towards Russian demands - were updated with European involvement last week.
The White House says it's "very optimistic" about reaching an agreement… Ukraine's leader Volodymyr Zelensky says territory remains the most difficult element of the plan.
Mark Cancian is a retired U.S. Marine colonel and senior adviser at Washington's Center for Strategic and International Studies.
IN: "Well there are…
OUT: "...want either restriction."
DUR: 0:23