Stream The Secret Diary of Symon Petliura Online Free – Watch Full Movie from Home at 123Movies. . The Secret Diary of Simon Petliura takes an unprecedented look at the short-lived Ukrainian People's Republic, which declared an independent Ukraine in 1918, and the later assassination of the UNR's chairman, Symon Petliura in Paris in 1926, orchestrated by the Kremlin at the start of the Soviet occupation of Ukraine.