Vikings were a group of people from long ago who loved adventure and exploring new lands. When they went on their journeys, they needed to protect themselves from danger. That's why they had special tools to defend themselves called "arms and armor".
Viking warriors typically wore helmets made of iron or leather to protect their heads. They also wore chainmail armor made out of lots of little metal rings linked together, along with a specially designed shield made out of wood that they could use to block opponents' attacks. Their weapons included swords, axes, spears, and bows with arrows.
The Viking's swords were made of iron and long enough to reach their enemies from a distance. They were also deadly sharp, so that they could easily cut through an opponent's armor. Viking axes were often used with a lot of force because they were heavy, making it easier for warriors to break through their enemies' shields. The spears, meanwhile, were great for poking at enemies from a distance. Finally, the Vikings used bows and arrows to shoot their enemies from a safe distance.
Viking armor was usually made of iron or leather, though the type of armor was determined by the warrior's status. For example, a wealthy Viking could have a more elaborate helmet or more layers of chainmail armor.
So, in summary, Vikings used special tools to protect themselves called "arms and armor" when they went on their journeys. Their weapons included swords, axes, spears, and bows with arrows, and their armor was usually made from iron or leather to protect them from their enemies' attacks.