On September 1, 1939, German and Slovak troops started a massive invasion of Poland
© AP Photo German troops bring down a barrier on the border with Poland
© AP Photo Adolf Hitler makes a speech in the Reichstag several hours afer the start of the invasion. Formally, Hitler didn't declare war on Poland
© AP Photo On the same day, Great Britain started evacuating citizens of big cities
© AP Photo Clildren first took the evacuation as an extra holiday. Over three million women, children and people with disabilities were evacuated from London
© AP Photo People read headlines on the start of war near the US State Department building in Washigton, D.C.
© AP Photo German troops in Poland, September 1939
© AP Photo German soldiers guard surrendered Polish troops
© AP Photo Londoners go into a bomb shelter during the first air-raid warning
© AP Photo A policeman rides a bicycle announcing the end of the first air-raid warning in London on September 3, 1939
© AP Photo Acting Town Crier and Saltbearer of the City of London reads a war proclamation from the steps of the Royal Exchange, in London, on September 4, 1939
© AP Photo/Putnam German embassy gets ready to move after the procalmation of war on September 4, 1939
© AP Photo A boy sits on the ruins of his house after a German air-raid on Warsaw in September 1939
© AP Photo/Julien Bryan People make sand bags to protest houses from German air-raids in London, September 5, 1939
© AP Photo A London policeman stands next to a one-person bomb shelter, September 6, 1939
© AP Photo British soldiers march before being sent to France on September 10, 1939
© AP Photo A woman bids farewell to her French friend before his departure to France on September 6, 1939
© AP Photo