Michelle Obama drew a pair of construction paper hands for a project with military children during a 9/11 visit to a USO center at the Army's Fort Belvoir.

The first lady said she wanted to highlight the organization's work on behalf of wounded service members and their families.

The USO Warrior and Family Center opened earlier this year at the Army installation in Virginia, just south of Washington. The USO says it's the largest ever to support wounded troops, their families and others.

Mrs. Obama helped children complete banners decorated with cutouts of handprints for a concert Wednesday night. She was joined by actor Gary Sinise, a USO supporter whose "Lt. Dan Band" was performing at the event.

Mrs. Obama also brought cookies shaped like the family's new dog, Sunny.