The word "军事" (jūnshì), meaning "military affairs", is formed through the logical combination of two meaningful characters. The first character, "军" (jūn), represents the core concept of "army" or "military". The second character, "事" (shì), carries the meaning of "matter", "affair", or "business". When placed together, they create a compound where "军" specifies the domain, and "事" defines the nature of that domain as a sphere of activity or concern, thus directly and conceptually forming the idea of "military matters".