The United States has no doubt that Russian servicemen are involved in the fighting in eastern Ukraine, President Barack Obama has said.
"The Russian forces that have now moved into Ukraine aren't on a 'humanitarian' or 'peacekeeping mission.' They are Russian combat forces with Russian weapons in Russian tanks. There are Russian warheads with Russian weapons and Russian tanks. Now, these are the facts. They are provable. They're not subject to dispute," he said at a press conference in Tallinn on Wednesday.
He also said that "trying to reclaim lands lost in the 19th century is surely not the way to secure Russia's greatness in the 21st century."
Obama did not specify what kind of "lands lost in the 19th century" he meant.