I've long been fascinated by this chain of more than two dozen fortified bunkers built along the border between France and Germany, built to protect France from German invasion after World War I. the Maginot Line was a massive military miscalculation. In the spring of 1940, Germany simply went around it, through Belgium and into Northern France.
In 1948, French citizens filled forty-nine railroad cars with tens of thousands of gifts, to show their gratitude for American assistance during World War Two, and for the relief aid that came after.