Can Europe afford to go it alone on defense?

If Russia were to invade an EU country, would the bloc be prepared to respond? A new report outlines what Europe needs to combat Russian aggression without the U.S. support its counted on for decades. DW's Steven Beardsley speaks to the report's authors, Guntram Wolff, an economist and senior fellow at Bruegel institute, and Alexandr Burilkov, Assistant Director for Research at the GLOBSEC GeoTech Center.