The Middle East and North Africa have always been of great interest to global thought and power due to their strategic location and huge fuel resources. One instance was Nazi Germany, which had specific geographical considerations for the region. This study seeks to answer the question: "How did the change in the role of German geopolitics from Haushofer's Ideas to Hitler's affect the fate of Iran during Reza Shah's reign?"; We will explain what happened, and why it happened. This research is descriptive-analysis in terms of its nature and method. In this article, an attempt was made to use graphical models to better understand concepts. The results indicate that Nazi Germany's ideas for conquering the world under Adolf Hitler and Rudolf Hess were very different from those of Haushofer. In World War II, Haushofer’s theory was replaced by Hitler's viewpoints. This change had a direct impact on Iran's strategy; Reza Shah adopted a neutral strategy during this period, which eventually led to defeat and military occupation of Iran. Thus, when Nazi Germany's strategy shifted from Haushofer’s to Hitler’s, Reza Shah should have changed his approach too.
