Kappus served on the Eastern Front during WW1 and was wounded. He married his nurse in Stuttgart. In 1917, he edited the Belgradd News. He edited Rilke’s letters to him about poetry, writing a book that was published in 1929. After fifteen years serving in the Army, Kappus worked as a newspaper editor and wrote poems, short stories, sketches and screen plays. After the Second World War, Kappus founded the Free Democratic Party in Berlin. He died on 9th October 1966.