A warrant officer in the Army is a highly respected position that requires technical expertise and specialized knowledge in a particular field). They are considered to be the few subject matter experts in their field, making up less than three percent of the Army. Warrant officers are responsible for solving technical problems within their area of expertise, serving as invaluable advisors to commanders and other leaders, training enlisted Soldiers and commissioned Officers in a specific career field, and organizing, advising, and supporting missions. They are highly trained experts who specialize in one of 48 technical areas including intelligence, aviation, and maintenance. Warrant officers are innovative integrators of emerging technologies, dynamic teachers, confident warfighters, and developers of specialized teams of soldiers. They are also critical advisors to commanders in conducting organizational training. The Army uses warrant officers to serve in specific positions which require greater longevity than the billet duration of commanders and other staff officers). Warrant officers remain single-specialty officers whose career track is oriented toward progressing within their field of expertise rather than focusing on higher command and staff duties).