Cheryl McKinley (center) talks to children of National Guard families invited to take part in a holiday tree-trimming event Dec. 1, 2010, at the official residence of the vice president. During the event, children made cards for servicemembers and ornaments that will be on display at the residence throughout the holiday season. Standing with Mrs. McKinley are Dr. Jill Biden (right), the wife of Vice President Joe Biden; and Shelia Casey, the wife of Army chief of staff Gen. George W. Casey Jr. Mrs. McKinley is the wife of Air Force Gen. Craig R. McKinley, the chief of the National Guard Bureau. (U.S. Army photo/Sgt. 1st Class Jon Soucy)