During World War II there existed metallic composite models of CIB composed separate EIB rectanglebadge and oakleaf wreath that then was pinned to blouse Combat Infantryman . Reconnaissance intelligence gathering edit Surveillance operations are often carried out with employment small units or sniper teams which information about enemy reporting characteristics such as size activity location and equipment. It was called shell shock and other names in previous wars. Please help improve this article by adding citations to reliable sources [...]