Wagon fort the square would usually be the cavalry. There were two principal stages of the battle using the wagon fort: defensive and counterattack. The defensive part would be a pounding of the enemy with artillery. The Hussite artillery was a primitive form of a howitzer, called in Czech a "houfnice", from which the English word howitzer comes. Also, they called their guns the Czech word "píšťala" (hand cannon), meaning that they were shaped like a pipe or a fife, from which the English word pistol is possibly derived. When the enemy would come close to the wagon fort, crossbowmen and hand-gunners
10 cm houfnice vz. 28 trail carriage, horizontal sliding-wedge breech, Hydro-pneumatic recoil system and high angle elevation. For the mountain gun role it could be broken down into three pieces for transport, a feature also shared by the contemporary 8 cm kanon vz. 28 and the later 8 cm kanon vz. 30 and 10 cm houfnice vz. 30 guns. The Czech Army declined to adopt the houfnice vz. 28, but ordered its successor the houfnice vz. 30 in larger numbers. The vz. 30 and vz. 28 shared a similar configuration, dimensions and their performance was largely the same. 10 cm houfnice vz. 28 The 10