German Chancellor Angela Merkel (3rd L) and U.S. President Barack Obama (L) review U.S. military personnel during an official State Arrival ceremony for Merkel on the South Lawn at the White House in Washington June 7, 2011. Obama and Merkel will air their differences over fiscal policy, the Eurozone crisis, and the war in Libya during the German leader’s state visit on Tuesday. REUTERS/Kevin Lamarque (UNITED STATES – Tags: POLITICS MILITARY)