Morale Patches, or simply patches. These are informal patches that became popular during the military campaigns in Iraq and Afghanistan among the American military. Unlike insignia and military chevrons, patches do not carry any official information, but only indicate the owner's sense of humor.
Berserkers were Scandinavian warriors who, according to ancient epics, fought in a trance.
Berserkers, dressed in bearskins, roared, brandished their swords, bit the edge of their shields fiercely, and charged at their enemies. They were possessed and felt no pain, even when struck by a spear. When the battle was won, the warriors fell down exhausted and fell into a deep sleep.