Unexploded military ordnance and toxic chemicals, some dating back to the two World Wars, are a global concern, especially when former military bases are redeveloped for housing or other civilian uses. Internationally, there are the added challenges of cleanup of battlegrounds and minefields. Experts estimate that the United States alone could spend between $50–250 billion to clean up these sites, many of which are in areas of high population density, where the demand for land for development is high. This book is unique in providing detailed guidance for cleaning up military ordnance sites – listing explosives, chemical warfare materials and breakdown products which can contaminate soil and groundwater and the tests needed to detect them, as well as cleanup techniques. Also included are remote sensing techniques, geophysical techniques, safety issues, the particular challenges of chemical weapons, etc. The author illustrates these techniques with case studies, including former battlegrounds in Europe and Asia, storage and waste disposal sites in Russia and former Soviet territories, and an extended study of the remediation of the large and complex Spring Valley site in the District of Columbia,.