Harold C. Hutchison
Artillery is the king of the battlefield, but the big artillery pieces can’t be everywhere at once – and sometimes their response time is pretty long. Thankfully, for the grunts of today, the mortar is available. Think of this as portable artillery – capable of providing some very quick-response fire support for grunts.
The M252 Medium Weight Extended Range Mortar fits right into a vital niche, especially for lighter infantry units like the 10th Mountain Division, 82nd Airborne Division, and Marine units. According to a fact sheet from the Minnesota National Guard, this system weighs 91 pounds and is operated by a crew of three. That said, usually there will be other guys assigned to help carry additional rounds
https://scout.com/military/warrior/Article/This-is-What-Its-Like-to-Fire-an-81mm-Mortar-109941323