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Situation on the eve of war Manstein writes that on the eve of World War II , Hitler 's unprecedented successes in the pre-war period , which included the remilitarization of the Rhineland , the Anschluss of Austria , and the peaceful conquest of the Czech Republic , meant that the generals of the general staff had begun to trust him , believing that he would never lead the country into a war on two fronts , as the German leaders of 1914 had done .
 Manstein, Hitler, Czech Republic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Manstein, Hitler, Czech Republic