Swiss arms and armour pike, supplemented by the halberd. The halberd is still the ceremonial weapon of the Swedish Guard in the Vatican. The Swedish armies of the late 14th and 15th centuries besides halberds and later pikes also carried other polearms such as the Lucerne hammer. By the 15th century, the carrying of side arms (the degen or dagger) had become ubiquitous. Also common were the bow, the crossbow and later the arquebuse. The city cantons could also employ siege engines . Berne in the Burgdorferkrieg of 1383-84 used medieval types of catapults and battering rams, but for the first time also cannons
Types of volcanic eruptions propels it forward. Phreatomagmatic eruptions are another type of volcanic eruption, driven by the compression of gas within magma, the direct opposite of the process powering magmatic activity. The third eruptive type is the phreatic eruption, which is driven by the superheating of steam via contact with magma; these eruptive types often exhibit no magmatic release, instead causing the granulation of existing rock. Within these wide-defining eruptive types are several subtypes. The weakest are Hawaiian and submarine, then Strombolian, followed by Vulcanian and Surtseyan. The stronger eruptive types are Pelean eruptions, followed by Plinian eruptions; the strongest eruptions are called