WASHINGTON, DC – JUNE 07: U.S. President Barack Obama (L) and German Chancellor Angela Merkel (R) review the troops during a welcome ceremony to the White House on the South Lawn June 7, 2011 in Washington, DC. This is the first official visit by a European leader to the White House since Obama became president. Merkel will be presented with the 2010 Medal of Freedom at a state dinner tonight. (Photo by Chip Somodevilla/Getty Images)