Japanese Prime Minister Yukio Hatoyama (

Japanese Prime Minister Yukio Hatoyama (4th R) poses during a photo session with Herman Van Rompuy (4th L), president of the European Council, José Manuel Barroso (3rd R), president of the European Commission, Catherine Ashton (2nd R), high representative for foreign affairs and security policy of the EU, Karel De Gucht (R), European commissioner for trade, Katsuya Okada (3rd L), Japan's foreign minister, Masayuki Naoshima (2nd L), minister of economy, trade and industry and Yorihisa Matsuno (L), Japan's deputy chief cabinet secretary, before the Japan EU Summit at the Hatoyama's official residence in Tokyo on April 28, 2010. European Union president Herman Van Rompuy called for closer ties with Japan in fields from climate change to aid for Afghanistan but said differences remain over trade. AFP PHOTO / POOL / FRANCK ROBICHON (Photo credit should read FRANCK ROBICHON/AFP via Getty Images)