President Barack Obama greets military families on the South Lawn during an Independence Day celebration at the White House in Washington, D.C., July 4, 2009. Obama invited about 1,200 military families to the White House for an Independence Day bash to personally thank them for their service and sacrifice. President Barack Obama greets military families on the South Lawn during an Independence Day celebration at the White House in Washington, D.C., July 4, 2009. Obama invited about 1,200 military families to the White House for an Independence Day bash to personally thank them for their service and sacrifice. SHARE: Download: Full Size (0.28 MB) Tags: Photo Essays Credit: VIRIN: 754421-T-DHX73-141.jpg Photo Gallery