The United States notifies Japan that it intends to abrogate the commercial agreement of 1911, opening the way to American trade restrictions.

23 Aug.

The Soviet Union and Nazi Germany agree to two treaties: one to maintain military neutrality toward one another; the other to divide Poland and the Baltic states following an anticipated German attack on Poland in the autumn. The Anti-Comintern Pact is rendered null and void.

24 Aug.

The Luftwaffe's new turbojet aircraft is tested at Rostock-Marienehe.

1 Sept.

Following a fabricated border clash, German troops invade Poland.

3 Sept.

Great Britain and France declare war on Germany, beginning World War II.

17 Sept.

Soviet troops invade Poland from the east.

21 Sept.

Romanian premier Armand Calinescu is assassinated by the fascist Iron Guard.

23 Sept.-3 Oct.

Representatives of Western Hemisphere nations meet in Panama to plan a Pan- American response to the war in Europe.

27 Sept.

Warsaw surrenders to German troops.

28 Sept.