A Leopard 2 A6 tank is in operation during the German army exercise in Bergen, Germany, on Oct. 2. Germany said it would sell 270 of the tanks to Saudi Arabia last year. According to official figures, the Saudis were the top buyers of arms from Germany. Peter Steffen /DPA /LANDOV hide caption

itoggle caption Peter Steffen /DPA /LANDOV

President Obama and German Chancellor Angela Merkel at a news conference in Berlin in June. A German newspaper reported Sunday that Obama had known since 2010 that his intelligence service was eavesdropping on Merkel. The story came a day after reports alleged Obama told Merkel he was not aware she was being spied on. Kevin Lamarque/Reuters /Landov hide caption

itoggle caption Kevin Lamarque/Reuters /Landov

U.S. Ambassador to France Charles Rivkin (in red tie) leaves the Foreign Ministry in Paris after being summoned Monday following reports that the National Security Agency spied on French citizens. Thibault Camus/AP hide caption

itoggle caption Thibault Camus/AP

A worker walks inside the turbine hall of the Sizewell nuclear plant in eastern England in 2006. The U.K. government on Monday announced that French-owned EDF would build the first new British nuclear power station in 20 years. Lefteris Pitarakis/AP hide caption

itoggle caption Lefteris Pitarakis/AP

Syrian refugees wait in Beirut before a flight to Germany on Wednesday. More than 100 Syrians were on the flight, the first mass relocation program for Syrian refugees. Germany has agreed to take in 5,000 of them. Nabil Mounzer/EPA/LANDOV hide caption

itoggle caption Nabil Mounzer/EPA/LANDOV

Anti-war protesters rally outside Downing Street in London on Wednesday. Britain's Parliament rejected the country's involvement in any military action against Syria. The U.K. government had been among those seeking a strong response to the alleged use of chemical weapons in Syria. Matt Dunham/AP hide caption

itoggle caption Matt Dunham/AP

A chocolate cake is shaped like Europe, with new EU members Romania and Bulgaria (far right), at a welcoming ceremony for their entry into the bloc on Dec. 14, 2006. Curbs on the movement of citizens of the two countries end on Jan. 1, raising fears in Western Europe of an influx of Bulgarian and Romanian workers. Thierry Charlier/AP hide caption

itoggle caption Thierry Charlier/AP