Hitler referred to the May Crisis in his 30 January 1939 Reichstag speech by stating that he had committed to a military invasion if Czechoslovakia did not surrender the Sudetenland by 2 October. Referencing "a serious blow to the prestige of the Reich" and an "intolerable provocation", Hitler claimed that the Sudetenland had been secured by German determination and willingness to result to force, rather than diplomacy.[5]