Warfare in Medieval Poland as well. Even their horses were smaller and lighter. Different armament was used by infantry, which marched onto the battlefield in close order formations of shield-bearers covering heavy cavalry detachments, or mobile units of bowmen and cross-bowmen, and sometimes irregulars, who used different weapons specialized to fight both foot soldiers and cavalry: (war hammer, war scythe, glaive, fork, flail, morgenstern, guisarme, halberd, bardiche). Defensive armaments of the infantry consisted of shields (wooden, round or oval, through light bucklers, up to heavy pavises), quilted jackets and gambesons or brigandines. A characteristic helmet of the foot soldier was the kettle hat -
Types of volcanic eruptions which this eruptive type is hallmark. Hawaiian eruptions are the calmest types of volcanic events, characterized by the effusive eruption of very fluid basalt-type lavas with low gaseous content. The volume of ejected material from Hawaiian eruptions is less than half of that found in other eruptive types. Steady production of small amounts of lava builds up the large, broad form of a shield volcano. Eruptions are not centralized at the main summit as with other volcanic types, and often occur at vents around the summit and from fissure vents radiating out of the center. Hawaiian eruptions often begin as