The American Red Cross is sponsoring a national “Holiday Mail for Heroes” campaign to receive and distribute holiday cards to service members, veterans and their families in the United States and abroad.

The card campaign includes those working and receiving care at Walter Reed Army Medical Center.

The American Red Cross and Pitney Bowes Inc., will partner for the third year to provide screening of all mail sent to the following P.O. Box address:

Holiday Mail for Heroes

P.O. Box 5456

Capitol Heights, MD 20791-5456

Cards should be postmarked no later than Dec. 7 to reach service members recovering at Walter Reed.

Please do not send cards to Walter Reed unless they are addressed to a specific wounded warrior.

Due to security restrictions, Walter Reed cannot accept generic mail addressed to “A Recovering Soldier” or “Any Soldier.” In past years, hundreds of cards were returned to senders because of generic addresses, many sent in response to misleading e-mails.