Defense (Shane M C E) (abbreviation CBRN), which is short for the phrase, defense, chemical, microbial, etc. ., the core is to forces, etc. units and tools to deal with weapons, chemical, microbial, etc. core goes to work. Until the end of the Cold War, the phrase for Washington, DC. antimicrobial, etc. chemical (abbreviation ABC) went to work, which is then for nuclear and. microbial., the chemical (abbreviations NBC) was changed. By making weapons , the protocol in 2012, and defense (abbreviation CBRN) Change found. This term earlier, and in the course of the Iran-Iraq war for SB, CE, CF, also used went that short phrase chemical-biological-radioactive.