1939

Coming into effect in Nazi Germany of:

Refik Saydam forms the new (11th) government of Turkey.

Adolf Hitler advises Jozef Tiso to declare Slovakia's independence, in order to prevent its partition by Hungary and Poland.

Neville Chamberlain gives a speech in the House of Commons, offering the British "guarantee" of the independence of Poland.

In a speech before the Reichstag, Adolf Hitler renounces the Anglo-German Naval Agreement and the German–Polish declaration of non-aggression.

Albanian fascist leader Tefik Mborja is appointed as member of the Italian Chamber of Fasces and Corporations.

Prime Minister Neville Chamberlain dismisses the Parliament of the United Kingdom until October 3.

Opening shots of World War II and invasion of Poland: At 4:45 Central European Time, under cover of darkness, the German WWI-era battleship Schleswig-Holstein quietly slips her moorings at her wharf in Danzig Harbor, drifts into the center of the channel, and commences firing on a Polish military installation on Westerplatte at the northeastern mouth of the port of the internationalized Free City of Danzig, beginning the Battle of Westerplatte and Battle of Danzig Bay. Polish soldiers defend there for 7 days. Five minutes previously, the bombing of Wieluń in the western part of Poland had commenced, beginning the Battle of the Border. Shock-troops of the German Wehrmacht begin crossing the border into Poland.

WWII: The United States declares its neutrality in the war.

WWII: The Poznan pocket collapses, and the Germans capture, according to many sources, over 150,000 men. Many elements of General Tadeusz Kutrzeba's forces work their way into Warsaw, under extreme difficulty.

2 – WWII: Physicist Hans Ferdinand Mayer writes the Oslo Report on German weapons systems, and passes it to the British Secret Intelligence Service.

The Soviet Union establishes the Finnish Democratic Republic puppet state in Terijoki.