1 of 5
From summits to private dinners, U.S. President Barack Obama and German Chancellor Angela Merkel have together tackled the global financial crisis, promoted free trade and forged an international accord to fight climate change.
2 of 5
U.S. President Barack Obama is welcomed by German Chancellor Angela Merkel upon his arrival at the chancellery in Berlin, Germany.
3 of 5
President Barack Obama toasts Chancellor Angela Merkel at an official State Dinner in the Rose Garden at the White House.
4 of 5
President Barack Obama and Chancellor Angela Merkel prepare for a family photo during their meeting at the hotel castle Elmau in Kruen, Germany.
5 of 5
President Barack Obama welcomes Chancellor Angela Merkel to the Nuclear Security Summit in Washington.