![Obama highlights Putin threat to EU during keynote speech in Brussels Obama highlights Putin threat to EU during keynote speech in Brussels](https://mtic.us/wp-content/uploads/2014/03/obama-310x168.jpg)
US president will use visit to brand Russian leader as a menace to international system built up by Europe and US. Barack Obama has charged Vladimir Putin with being a menace to an international system built up over decades following the Russian leader’s sudden appropriation of part of Ukraine.