Panzergrenadier ( ), abbreviated as PzG (WWII) or PzGren (modern), meaning "Armour"-ed fighting vehicle "Grenadier", is the German term for the military doctrine of mechanized infantry units in armoured forces who specialize in fighting from and in conjunction with infantry fighting vehicles (IFVs) – that is, armoured troop carriers designed to carry a mechanized squad of six to eight soldiers into, during and out of combat while providing direct fire support for those troops.
The doctrine originated primarily in Nazi Germany during World War II and is today used by name in the countries of Germany, Austria, Switzerland and Sweden.