Participants in the G7 summit (L-R) President of the European Council Donald Tusk, Japanese Prime Minister Shinzo Abe, Canadian Prime Minister Stephen Harper, United States President Barack Obama, German Chancellor Angela Merkel, French President Francois Hollande, British Prime Minister David Cameron, Italian Prime Minister Matteo Renzi and European Commission President Jean-Claude Junker had a group photo taken at Elmau Castle in southern Germany on June 7, 2015. Germany is hosting a G7 summit at the castle on June 7 and 8.[Photo/Xinhua]