The 42 cm L/15 Küstenhaubitze M. 14 (42 cm, 15 caliber, Coastal Howitzer Model 14) was a superheavy siege howitzer used by Austria-Hungary during World War I and by Nazi Germany during World War II. It was designed to penetrate the weakly armored decks of modern dreadnoughts in accord with the prevailing coastal defense doctrine that held it was better to attack the weakest point with high-angle indirect fire than to attempt to challenge their strongly armored sides with exceedingly expensive guns that had to be equally as well armored to withstand return fire from the battleship. Howitzers were significantly cheaper and could be hidden behind hills to avoid the expense of armoring them. The known problem of hitting a moving target with indirect fire was to be alleviated by massed fire fro