When U-234 slipped out of a Norwegian harbor on her maiden voyage in March 1945, the submarine carried a precious assortment of armaments and a select group of officials destined for Japan. En route came word that Germany had surrendered, and the boat's commander, Johann Heinrich Fehler, suddenly found himself in a rogue submarine. U-234 was not only loaded with the most technically advanced weaponry and electronic detection devices of the era, but also two Japanese naval officers still at...
