Barack Obama, Jose Manuel Barroso, Herman Van Rompuy

U.S. President Barack Obama, center, shakes hands with EU Council President Herman Van Rompuy, right, as EU Commission President Jose Manuel Barroso, left, looks on prior to an EU-US summit meeting at the EU Council building in Brussels on Wednesday, March 26, 2014. Obama is on a one day trip to Belgium to meet EU officials and visit the WWI Flanders Field Cemetery. (AP Photo/Virginia Mayo)