The story
German supply ship Regensburg arrived at Yokohama, Japan, disembarking prisoners captured by German merchant raiders that Regensburg supported. When inspecting captured mail that was also given to the Japanese, it was discovered that the Americans had broken the current Japanese Navy code, leading to a change in codes.
There's more to discover
You have arrived at just one small part of Back to Normandy — a personal project dedicated to preserving stories, images, music and memories of the Second World War.
Every record is a doorway to a larger story. Explore Back to Normandy to discover more, or visit Fred Vogels' personal website to learn about the person and the projects behind it.