But in the 1930s, as Polish democracy crumbled, attitudes hardened. Popular support for the moderate Ukrainian party UNDO fell away in favour of the underground terrorist group OUN, which borrowed its philosophy from fascist Germany. (Members swore to a Decalogue of ten commandments, the first of which was ‘You will attain a Ukrainian state or die in battle for it’, the ninth, ‘Treat the enemies of your nation with hatred and ruthlessness.’)
