Major military operations are normally shrouded in secrecy. But Ukraine's planned offensive against Russia has been part of a lively public debate for months. This has created a wide range of expectations.
"In the best case, the Ukrainians really liberate a lot of territory, perhaps even pushing the Russians back to the line on Feb. 23 of last year before this massive Russian invasion began. That would be a huge blow to Moscow," said Steven Pifer, a former U.S. ambassador to Ukraine who's now at Stanford University's Center for International Security and Cooperation
