Answer:
The policy of Lebensraum was used by Hitler to justify the invasion of nearby territories in Austria, the Sudetenland (Czechoslovakia), and the Rhineland before the outbreak of WWII.
Explanation:
The term lebensraum means vital space. This concept meant that a given country, in this case Germany, required a certain amount of territory (or vital space) to be able to develop to its maximum potential. Hitler believed that the land Germany had at the time was insufficient to adequately support the needs of the population, therefore, he used this policy to justify Germany's invasion of bordering lands. The fact that these territories had a majority of Germans living in them was another factor that was used in combination with the idea of lebensraum.
As Hitler deemed the Germans to be a superior race, he also believed the were entitled to more and better land and resources. Lebensraum gave him the perfect theoretical base to carry out his expansion.
