infantry unit

armoured infantry (амер. armored infantry)

air assault infantry unit

light infantry unit

battery coolant unit / battery-coolant unit (BCU)

gear reduction unit / gear-reduction unit

position and navigation unit / position navigation unit (PNU)

pinch (a unit) out of a large unit

airborne infantry battalion

airborne infantry fighting vehicle

armored infantry combat (fighting) vehicle (AICFV)

Armored Infantry Fighting Vehicle (AIFV)

foot mobile infantry

infantry

infantry battalion

infantry carrier

infantry counterfire platoon

infantry division

infantry entrenchment

infantry fighting vehicle (IFV)

infantry landing ship

infantry mobility vehicle (IMV)

infantry squad

infantry-tank team

light infantry

mechanized infantry

mechanized infantry battalion (MiB)

mechanized infantry brigade

mechanized infantry combat vehicle (MICV)

mechanized infantry division

motorized / mounted infantry

mounted infantry

naval infantry / marines