Ukraine believes Russian invasion not imminent, but Western allies remain concerned

Summary: Ukraine's leaders on Monday tried to reassure the country, despite more than 100,000 Russian troops deployed near the nation's northern and eastern borders, and despite new announcements of Russian training exercises. The West considers an invasion as possibly imminent, and that fear is being felt on Ukraine's frontlines. Nick Schifrin reports. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders