U.S. Army trainees laugh and sing songs together after a field training exercise during basic combat training at Fort Jackson, S.C., Aug. 9, 2006. U.S. Army trainees laugh and sing songs together after a field training exercise during basic combat training at Fort Jackson, S.C., Aug. 9, 2006. SHARE IMAGE: Download Image: Full Size (2.12 MB) Tags: Photo Essays Photo By: VIRIN: 606060-N-RAC37-319.jpg Photo Gallery