Air Force Maj. David Johnson, from Pentagon Air Staff,

Air Force Maj. David Johnson, from Pentagon Air Staff, reads a note on a chain of more than 500 paper hearts sent to troops serving in Afghanistan at Camp Arena, Herat province, on March 23, 2011. The hearts were sent by students and teachers from Anthony Burns Elementary School in Stafford, Va., to tell the troops how much they are appreciated and to thank them for their service.