Viking raid warfare and tactics
Vikings were members of tribes, originally from Scandinavia, of Norse ancestry, who gained a reputation for their raids and piracy in many parts of Europe, especially England, Ireland, and Frankish territories. The term "Viking Age" refers to the period roughly from 793 AD to the late 11th century in Europe. In this era Viking activity started with raids on Christian lands in England and eventually expanded to mainland Europe, including parts of present-day Russia. While maritime battles were rare, Viking bands proved very successful in raiding coastal towns and monasteries due to their efficient warships, and intimidating war tactics, skillful hand-to-hand combat, and fearlessness. What started as Viking raids on small towns transformed into the establishment of important agricultural spaces and commercial trading-hubs across Europe through rudimentary colonization. Vikings' tactics in warfare gave them an enormous advantage in successfully raiding (and later colonizing), despite their small population in comparison to that of their enemies.
Swedes in the United Kingdom
The earliest wave of migration from modern day Sweden, Norway and Denmark came in the form of the Viking invasion of Britain in the year 793. Viking raids occurred up and down the largely undefended east coast of England and Scotland during the eighth and ninth centuries and Scandinavian settlements became established over the entire island of Great Britain, the most important of which was Jórvík (now York). Viking rule came to an end in the 11th century when Normans invaded the shores of Britain. Despite this, Scandinavian influence is evident in the UK even to this day and many millions of Britons have some Viking heritage (especially in Northern England, Eastern England, Scotland and the Shetland Islands).