Gavrilo princip By MarandaMoney1 Jun 28, 1914 Assassination Jul 28, 1914 World War 1 germany was trying to get mexico as an alie in ww1 germany promiced mexico there lands back Jun 28, 1919 Tready of Versaile Sep 1, 1939 WW2 WW1 ended and they saught revenge, 30 years later ww2 started Aug 6, 1945 Atomic bombs because of ww2 they bombed japan