This list catalogues mortars which are issued to infantry units to provide close range, rapid response, indirect fire capability of an infantry unit in tactical combat.
[1] In this sense the mortar has been called "infantryman's artillery", and represents a flexible logistic solution[clarification needed] to the problem of satisfying unexpected need for delivery of firepower, particularly for the light infantry.
[2] In general, infantry mortars are defined by what a team of infantrymen, sometimes known as mortarmen, can transport unaided by significant vehicle support.
Because of this intrinsic restriction mandated by weight, mortars are only considered "infantry" with a calibre of up to 120 mm.
These larger weapons usually require wheeled assemblies to allow their towing either by hand or by light tactical vehicles.