But bored sailors will do anything, and what they did was fire upon a small plane (missing it). Which turned and strafed them, sinking their little boat and leaving my uncle with shrapnel in his butt for the rest of his life.
His tiny experience in a vast planet-wide panorama of violence. This mapping project is a heroic undertaking! My hat is off to the people involved.
I knew U-boats operated off the Eastern US coast but I did not know they operated so much in the Gulf of Mexico and the Caribbean.
Tangential, I've been watching this documentary series called Battlefield (highly recommended) https://www.youtube.com/watch?v=21qqkC1cWvE and they mention later versions of U-boats had a 12,000+ mile range. So the Gulf of Mexico is within range especially if they sortied from France.
It would be amazing if the timeline could be filtered - to compare the rate and number of sinkings in each area year over year.