A German heavy tank battalion (German: "schwere Panzerabteilung", short: "s PzAbt") was an elite battalion-sized World War II tank unit of the German Army (1935–1945), equipped with Tiger I, and later Tiger II, heavy tanks. Originally intended to fight on the offensive during breakthrough operations, the German late-war realities required it to be used in a defensive posture by providing heavy fire support and counter-attacking enemy armored breakthroughs, often organised into ad hoc Kampfgruppen.