The Germans employed a variety of heavy field guns, mostly of 150mm calibre, including the Feldhaubitze 18 or FH 18, which formed the standard divisional heavy artillery. The same weapon was used in the Hummel self-propelled gun. Of course, these were not the largest guns available to the German armed forces, but they were the most common of the heavy artillery, larger guns often being favoured for coastal defence rather than action in the field.