World War II

• German officers at May Day parade in Moscow, USSR (1941)

• https://www.historyplace.com/worldwar2/triumph/tr-austria.htm "When news of the invasion reached Britain and France, they reacted just as they had when Hitler occupied the Rhineland a few years earlier. They did nothing. "

• https://en.wikipedia.org/wiki/Amerikabomber
• https://en.wikipedia.org/wiki/Hitlers_Zweites_Buch