
German Chancellor Angela Merkel
Germany's national political system is a parliamentary system, also known as the cabinet system. The federal government is responsible to the Bundestag, and the German Chancellor is the head of the government, deciding the country's major policies. In comparison, the federal president is only a false head of state, does not directly lead the government, and does not enjoy actual executive power.
The predecessor of the German president was the federal president of Germany in the period of the Weimar Republic. At that time, the president of the state still had great power. He not only enjoyed the power to represent the state, but also could directly influence national politics by disbanding the House of Parliament and appointing and removing the Prime Minister. He also had the right to promulgate the State of Emergency Act or directly command the army. He was called "the emperor without the title of emperor."

German President Marshal Hindenburg
1933, German President and Field Marshal Hindenburg appointed Hitler as Prime Minister. Hindenburg died a year later, and Hitler combined the positions of president and prime minister into one, calling the head of state and the prime minister of the empire. This also means that he combined the president, the prime minister, and the commander of the three armies to begin a dictatorship.

Hitler
After World War II, the Federal Republic of Germany was established. The Constitutional Basic Law learned lessons and greatly restricted the power of the federal president. It could not appoint the federal prime minister alone, could not promulgate emergency bills, and did not enjoy the supreme commander of the army. It was basically nothing to do.
The German president is elected by the Federal Assembly and has a term of five years and can be re-elected once. The current president is Steinmeier and took office on March 19, 2017. As the head of state, his main responsibilities include: signing and promulgating laws and decrees signed by the Federal Prime Minister and relevant government ministers passed by the Bundestag and the Federal Senate; appointing and removing the Federal Prime Minister according to the decision of the Bundestag; appointing and removing the ministers of each department based on the nomination of the Prime Minister; presiding on national ceremonial activities, etc.

The current German President Steinmeier
It can be seen that the German president is also restrained by the Bundestag, the Senate and the government. Of course, in the sense of international law , it still represents Germany and the German people.

Germany Presidential Palace