In most of the European countries after the war, the economic and living conditions in cities was unbearable. The non-stop bombings of some cities led to thousands being left homeless and jobless, and many of the countries would fall into debt either from joining the war itself, partaking in it, or having to pay reparations for certain war crimes. under the Geneva Convention (Germany, Japan, etc.) It also didn't help that the Great Depression hit before the war, because while it was a very terrible event in the United States, the rest of the world suffered as well.
