Final answer:
Hitler's invasion of Austria and the Munich Pact were the two major events that occurred between Hitler's appointment as chancellor and the reoccupation of the Rhineland.
Step-by-step explanation:
Between Hitler's appointment as chancellor and the reoccupation of the Rhineland, an event that occurred was Hitler's invasion of Austria in March 1938. This invasion was carried out under the guise of reunifying ethnic Germans within one country. However, it was a clear violation of the Treaty of Versailles and set the stage for further German expansion.
At a conference in Munich later that same year, Great Britain and France agreed to the partial dismemberment of Czechoslovakia and the occupation of the Sudetenland by German troops. This was known as the Munich Pact and was a policy of appeasement, with the hopes of preventing war. Unfortunately, Germany occupied the rest of Czechoslovakia shortly after the agreement.