Chuck Gohl ©Stars and StripesKrizevici, Bosnia and Herzegovina, June 1996: Spc. Mark Miller stands guard at the entrance of a 2.5-mile railroad tunnel between Tuzla and Zvornik, cities on opposite ends of the former line of confrontation. Theories about what was in the tunnel ranged from nothing at all to mass graves, mines and chemical weapons, so the troops navigated the dark depths with great care.

RELATED MATERIAL:Stars and Stripes' 1996 story about the tunnel.