Back to school!!!

Well, it's been a nice long and hot summer, but now it is the time for work - well sort of!! In the news in Poland there is the tragic death of two pilots ay Radom airshow over the weekend as well as PM Putin's visit to Poland for the aniverssary of the start of the Second World War. He has publicy supported his ministries's claim that the Soviet Union only attacked Poland in order to pre-empt a German/Polish plot against the USSR. Were this so, then why was Stalin so surprised two years later when Hitler attacked?