17-15: Subterranean Ops Catalog - A Resource Guide (CAC login required)
The subterranean operational environment presents Soldiers with unique challenges. Advantages the U.S. has above ground are eliminated or severely degraded underground. Potential adversaries will attempt to capitalize on our degraded capabilities by using tunnels and underground facilities to provide them protection and some freedom of movement. Soldiers must become proficient at operating in this environment. This catalog is a compilation of doctrine, handbooks, information papers, after action reports, and historical documents that CALL analysts determined were relevant and would assist Soldiers and unit leaders prepare for combat in areas containing subterranean systems and underground facilities.