The term "munitions industry" is commonly used to refer to the industry involved in the production and development of military weapons and ammunition. However, there are several other synonyms that can be used in place of this phrase. Some of these include military-industrial complex, defense industry, arms industry, military equipment industry, and defense sector. Each of these terms conveys a similar meaning to the munitions industry but may be used in different contexts. Regardless of which synonym is used, they all refer to the complex business of producing and selling weapons and military equipment used in national defense and warfare.