One major shift in security and defense policy concerning Germany is probably attracting the most observers' attention: the decision of increasing the military expenditure by 100 billion euros (just for 2022) announced by president Scholz the 27th of February. The main power in continental Europe is thus coming back on the scene as the dominant military actor. Is it a definitive turning point or is it just a temporary claim that will soon fade away? Let's examine together the complex military history of Germany.