Wounded war veteran Marine Cpl. J.B. Kerns, 22, joins actor and military activist Gary Sinise at a February news conference in Martinsville, Va. After canceling a March benefit concert for Cpl. Kerns, Mr. Sinise is set to perform with his Lt. Dan Band in Martinsville on Thursday. (Associated Press)

Wounded war veteran Marine Cpl. J.B. Kerns, 22, joins actor and military activist Gary Sinise at a February news conference in Martinsville, Va. After canceling a March benefit concert for Cpl. Kerns, Mr. Sinise is set to perform with his Lt. Dan Band in Martinsville on Thursday. (Associated Press)