Evening Edition: Why Are Russian Troops Massing At Ukraine’s Border?

The world is watching to see what nearly one hundred thousand Russian troops are doing at their border with Ukraine. NATO Secretary General Jens Stoltenberg met with the Ukrainian Foreign Minister to show support and discuss the security situation. FOX’s Trey Yingst speaks to Retired General Jack Keane, the chairman of the Institute for the Study of War and Fox News Senior Strategic Analyst, about what he thinks is the possibility of a full scale invasion.