*At the time of signing the Munich agreement, it was i.a. already known that, for example, in 1934, Nazis performed the so called ''Night of the Long Knives'' purge, one of the very first victims of which was Erich Klausener, the leader of Catholic Action in Germany.<ref>{{cite web
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*At the time of signing the Munich agreement, it was ''[[inter alia]]'' already known that, for example, in 1934, Nazis performed the so called ''Night of the Long Knives'' purge, one of the very first victims of which was Erich Klausener, the leader of Catholic Action in Germany.<ref>{{cite web
|title=Remembering Dr. Erich Klausener, 1/25/1885 – 6/30/1934, German Catholic Action Leader Shot by Hitler’s Henchmen
|title=Remembering Dr. Erich Klausener, 1/25/1885 – 6/30/1934, German Catholic Action Leader Shot by Hitler’s Henchmen