U.S. Vice President Mike Pence attends a joint press conference with European Council President Donald Tusk (not in the picture) in Brussels, Belgium, Feb. 20, 2017. U.S. Vice President Mike Pence on Monday reaffirmed "strong commitments" to the European Union (EU), in a bid to allay the bloc's doubts on the new U.S. administration's stance towards it. (Xinhua/Gong Bing)