Answer:
The Nazis increased the size of the military as part of a campaign to extend Germany’s boundaries.
Step-by-step explanation:
The main goal of Adolf Hitler and his Nazi Party was to establish and New European Order in which Germany would be the most powerful country. To achieve this, the Nazis planned to annex several areas, especially in Eastern Europe, slaughter and eslave the majority of the population, and re populate them with German People.
This is reason why the Nazi Party started to increase the size of the military: to prepare for the future invasions that they would undertake.