This useful guide contains more than 3,000 environmental acronyms and abbreviations. It also includes a glossary of more than 1,000 environmental terms for those frequently used but difficult to find expressions, written in non-technical, easy-to-understand language.

Although military policy seems focused on overseas threats, defending the homeland is, of course, the ultimate objective. This guide examines emergent threats to the USA homeland such as speciality weapons, cyber attacks and ballistic missiles and delineates the army's responsibilities.