Jadran

First World War naval action in the Adriatic consisted mainly of Austro-Hungarian bombardments of Italy′s eastern coast, and wider-ranging German and Austro-Hungarian submarine incursions into the sea and the Mediterranean. Allied forces mainly limited themselves to blockading the Central Powers' navies in the Adriatic, which was successful in regards to surface units, but failed for the U-boats, which found safe harbors and easy passage into and out of the area for the whole of the war. Considered a relatively secondary part of the naval warfare of World War I, it nonetheless tied down significant forces.…