The German invasion of Poland was dramatic, and drew the attention of the entire world, but fighting had actually begun even earlier as Germany sought to press its territorial ambitions. Often overlooked, actual combat occurred six months earlier, and not far from the Polish border with Czechoslovakia, in a tiny, autonomous region with several names, including, for a time, the Republic of Carpatho-Ukraine.
The first class of nuclear submarines were a learning experience for the Soviet Navy. The November class boats experienced numerous difficulties and accidents, culminating in what has been described as a potential “Underwater Chernobyl."