In 1919–20, the government of Germany was formed by the Weimar Coalition, consisting of the Social Democratic Party (SPD), German Democratic Party (DDP, left-of-centre liberals), and Zentrum (conservative Catholics). President Friedrich Ebert, Chancellor Gustav Bauer, and Defence Minister Gustav Noske were all members of the SPD. According to the constitution, the president was the commander-in-chief of the armed forces, represented in peace time by the Minister of Defence. The most senior officer of the land forces was called "Chef der Heeresleitung", a post held in early 1920 by General Walther Reinhardt.