Ratzel's theory of organic growth, also known as Lebensraum, is the belief that a nation's territorial expansion is necessary for its survival and development. It suggests that a state can grow and thrive by acquiring more land.
Related terms
Heartland Theory: This theory, proposed by Halford Mackinder, suggests that whoever controls the heartland region (Eastern Europe) has the potential to dominate the world due to its strategic location.
Possibilism: The idea that humans have the ability to shape their environment and overcome natural limitations.
Territoriality: The behavior or attitude exhibited by an individual or group in protecting its territory from intrusion by others.
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