Heres a very informative site that shows the war at sea ..... makes a good starting off point .... and will give ideas of where else to look ! Details of the major actions fought at sea during the First World War and including possibly the greatest naval action of them all at Jutland in 1916 - an inconclusive battle that continues to generate debate today (Germany won the tactical victory but the British claimed the more-important strategical success) http://www.firstworldwar.com/battles/sea.htm Annie