Immediately on the outbreak of war, batteries were erected at Scapa and the Territorial Garrison Artillery of the Orkneys were mobilized to man them.
About the end of the 8th century both the Shetlands and Orkneys suffered from the depredations of Norse vikings, or pirates, until Harold Haarfager annexed the islands to Norway in 875.
This type of structure is somewhat common in Ireland, but the only Scottish examples are those at Brechin, Abernethy in Perthshire, and Egilshay in the Orkneys.
In 1468 the Orkneys and Shetlands were pledged by Christian I.
The home of the common mackerel (to which the following remarks refer) is the North Atlantic, from the Canary Islands to the Orkneys, and from the Mediterranean and the Black Sea and the coasts of Norway to the United States.