Recently, a video from a YouTube channel I watch frequently provided a very interesting discussion of the US Coast and Geodetic Survey in WWII.
It's a great story.
Historic boundaries and conservation efforts.
I had the immense honor to know one of those, Francis Popper who was a young C&GS officer serving at the Manila office during the attack, he was awarded a bronze star and was evacuated because of his experience with managing the coastal mapping of the Philippines. He went on to be a UC&GS field chief, director of the agency's New York Computing Office and then chief surveyor the of the International Boundary Commission when he retired from the agency. I later moved in almost next door to him and we had many long conversations about the history of the agency and it's many "personalities". I often see his initials (FXP) on descriptions of triangulation stations where he was chief and it makes me think of how much we owe to that great generation.