When Hitler marched his troops into Czechoslovakia in March 1939, it became clear that appeasement [Appeasement: The policy of pacifying an aggressor through giving in to their demands, thus maintaining peace. ] had failed. Was this the only reason why Chamberlain abandoned appeasement, or were there other factors involved?

German troops marched into Czechoslovakia on 15th March 1939
On 15 March 1939, German troops marched into Czechoslovakia. They took over Bohemia, and established a protectorate [Protectorate: Any state or territory protected and partially controlled by a stronger one. ] over Slovakia.
Hitler's invasion of Czechoslovakia was the end of appeasement:
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