History of the North Sea the North Sea though they saw little action. The Austro-Prussian War (1866) resulted in Prussia's gaining full control of the Kiel Canal, allowing their Baltic ports access to the North Sea. France declared war on Prussia 19 July 1870 which initiated the Franco-Prussian War (1870–1871). The French Navy was, at the time far larger and superior to the North German Federal Navy, the Navy of the North German Confederation. Though the French did take a number of merchant ships bound to and from North Germany, shortages of manpower and coal, as well as conflicting orders, made the attempted blockade of
White Sea–Baltic Canal the canal as well. The canal is operated by the agency known as the White Sea and Lake Onega Waterways and Shipping Administration (Беломорско-Онежское государственное бассейновое управление водных путей и судоходства), which is also responsible for shipping on Lake Onega and in the Belomorsk harbor area (but not throughout the actual White Sea). The canal, apparently, is a comparatively minor part of the agency's business, as in the same 2007, the agency's entire cargo volume was 4.6 million tonnes, and the passenger count, 155,000. According to official statistics, a total of 193 million tonnes of cargo had been transported over