A few weeks ago, SPD parliamentary group leader Rolf Mützenich demanded in a speech in the Bundestag that we had to “think about how we can freeze a war and end it later” – a position that Mützenich then defended in detail in an interview with the SZ. Since then, the discussion about appropriate German and European support for Ukraine has not stopped, even after the US Congress decided to provide more aid. The world war and global historian Jörn Leonhard recently published a book on the question of how to end wars.