Answer:
The people being unhappy
Explanation:
The people were struggling throughout this time so, people rose up for their country usually being nationalist.
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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 treaty set the British boundaries between the British Empire in North America and the United States MURICA