History of the North Sea great herring fishing industry resulting in Scotland becoming a European leader in that industry. During the First Schleswig War (1848–51), the Crimean War (1854–56) and the Second Schleswig War (1864), belligerents took steps to reduce or eliminate commerce in the North Sea by their enemies. In the first Schleswig War, Denmark was able to halt maritime commerce by Germany in the North Sea and in the second, imposed tolls on ships crossing through the Danish straits between the Baltic and North Seas. The Crimean War saw British and French expeditions sent into the Baltic to prevent Russian ships' egress into
Islands of the North Atlantic one of the regions which appoint a representative onto the committee of the World Universities Debating Council. Greenland, the Faroe Islands and Iceland would be included in the definition of IONA used in this context, while Newfoundland and Prince Edward Island would be in North America. However, none of these islands have yet participated in the World Universities Debating Championships. Otherwise, the term has achieved very little popular usage in any context. Islands of the North Atlantic IONA (Islands of the North Atlantic) is an acronym suggested in 1980 by Sir John Biggs-Davison to refer to a loose linkage of