Tao Te Ching translates very roughly as "the way of integrity". In its 81 verses it delivers a treatise on how to live in the world with goodness and integrity: an important kind of wisdom in a world where many people believe such a thing to be impossible.
Because they knew that Germans could sink any ship they want. They could sink civilian ships. Back then, the only way to travel long distances was by boat, because passenger airplanes had not been invented. The Germans could now sink them if they wanted to travel somewhere, so they either risk their life or not go on trips.
I can’t see the map so I can’t answer it
