Hitler physically invaded Austria, although he also had some support from within the country, from people who believed all Austrians should be Germans. The invasion was later made to look like a voluntary incorporation with the helped of a staged referendum.
The answer is <em>D)Arguments and ineffectiveness in the government.</em>
German disarmament.
A cut-back of occupation troops.
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The development of German democratic government.
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The trial of Nazi leaders.
