Military history of Ireland
The Vikings pillaged monasteries on Ireland's west coast in 795, and then spread out to cover the rest of the coastline. The north and east of the island were most affected. During the first 40 years, the raids were conducted by small, mobile Viking groups. From 830 on, the groups consisted of large fleets of Viking ships. From 840, the Vikings began establishing permanent bases at the coasts. Dublin was the most significant settlement in the long term. The Irish became accustomed to the Viking presence and culture and in many cases became allies, with intermarriage common throughout Ireland. A major Irish battle involving Vikings was fought at the Battle of Clontarf in 1014, in which a large force of Vikings and their Irish allies were defeated by the gathered Irish forces of Brian Boru, then the High King of Ireland along with a small contingent of Viking defectors. After this date Viking activity was sporadic with various Kings and nobles attempting to extend their power base. In 1099, Magnus Barefoot, the King of Norway, and his Viking army had successfully campaigned alongside their Irish allies against opposing Irish warbands. On his return his force was ambushed and killed on the north coast of Ireland.
Viking FK
Viking Fotballklubb, commonly known as Viking or Viking Stavanger internationally, is a Norwegian football club from the city of Stavanger. The club was founded in 1899. It is one of the most successful clubs in Norwegian football, having won 8 Norwegian top division titles, most recently in 1991, and 5 domestic Norwegian Cup titles, most recently in 2001. The club has played more top-flight league games than any other club. It has played in the top division since the league was established, except for the years 1966–67, 1987–88 and 2018. Notable European successes include knocking English side Chelsea out of the UEFA Cup during the 2002–03 season, knocking out Sporting CP from the same tournament in 1999–2000, and qualifying for the group stages of the 2005–06 UEFA Cup.