Russia has in place about 70% of the combat power it believes it would need for a full-scale invasion of Ukraine and is sending more battalion tactical groups to the border with its neighbor, two U.S. officials said on Saturday.
If Moscow carries out a full-scale invasion, major casualties would follow, one of the officials said.
Ukraine could suffer 5,000 to 25,000 troop casualties, while Russia's troop casualties could be between 3,000 and 10,000, and civilian casualties could range from 25,000 to 50,000, according to U.S. estimates, the official said.