Today is a 70th anniversary of the Warsaw Uprising: http://en.wikipedia.org/wiki/Warsaw_uprising In short: underground Polish Home Army attacked Germans to liberate Warsaw in anticipation of incoming Soviet front. Despite being outnumbered and having only limited supplies they managed to fight for 63 days. Up to 200,000 people died (mostly civilians, many in mass executions), almost entire city was wiped out (partly during uprising, partly afterwards, as a German revenge). Soviet army stopped on the eastern bank of Vistula river and watched. One of the most tragic events of the WW2, in many ways.