in connection with the 2013 anti government protests in gezi park in istanbul. the 64 year old has repeatedly denied the accusations. now on bbc news, it s hardtalk. welcome to hardtalk. i m stephen sackur. vladimir putin claims ukraine is a fake nation. he peddles a moscow centric version of history, which draws on centuries of russian imperialism. his invasion of ukraine is about much more than military supremacy, it s about culture, language, identity and values, too. my guest is the ukrainian rock star, former mp and current lieutenant in the ukrainian armed forces, slava vakarchuk. what can this cultural icon contribute to the defence of the ukraine?