• Report to Congress on the Defeat of Hard and Deeply Buried Targets, Submitted by the Secretary of Defense in Conjunction with the Secretary of Energy
  
  
• Destruction of an Afghan Cave Complex, Courtesy of the US Department of Defense
  
  
• Destroyed Iraqi hardened bunker, Courtesy of the US Defense Threat Reduction Agency
  
  
• Libyan underground facility at Tarhunah. Source: Office of the Secretary of Defense. Proliferation: Threat and Response, April 1996