I just finished the Behind the Bastards episodes on Martin. What an interesting man. In his younger years he was a German nationalist, antisemite, member of the Freikorps, and Nazi supporter (though also imprisoned for religious disagreements with the Nazis). Later in life he wrote that famous “First they came…” poem, became an anti-war activist, was awarded the Lenin Peace Prize by the Soviet Union, and before he died said he was moving towards become an anarchist.