January: Germany resumes unrestricted warfare in the north Atlantic
February: Unknown to the USA or Britain, Mexico receives the Zimmerman Telegram.
February 16th: Mexico invades the southwest United States.
March: Germany makes peace with the provisional government in Russia.
March 1st: Japan attacks Pearl Harbor. The United States declares war on Japan
March 21st: Germany begins Operation Michael, a planned offensive on the Western Front against the Allies.
November 5th: Supreme War Council of the Central Powers is created.
July 15th: German forces begin a siege of Paris
August 6th: Paris falls to the Germans.
August 30th: Japan launches a land-invasion of Hawaii, but is repelled.
September 26th: Germany launches Operation Sea-lion, and invades England.
September 29th: France signs an armistice with Germany.
October: The Republic of Russia defeats a Communist takeover by the Bolsheviks. US troops assist the "White" forces in repelling the revolt.
October 10th: US repels the Mexican invasion, and attacks Mexico.
October 24th: Austria-Hungary wins the Battle of Caporetto, and Austrian troops advance into Italy.
October 26th: London falls to advancing German troops. King George dismisses Parliament.
October 30th: The Ottoman Empire collapses. German forces are rushed in to occupy the territory.
November: American forces advance against Japan in the Pacific.
November 3rd: Italy and Austria-Hungary sign a peace armistice.
November 9th: A revolution begins in Britain. The Republic of Britain, or the Worcester Republic, is created.
November 11th: Germany, victorious, signs an armistice with the new government in Britain.
December 1st: American troops enter Mexico City.
December 9th: Armistice signed between Mexico, Japan, and the United States. World War I is over.
1919 and 1920
May 19th, 1919: Turkish war of Independence begins.
June 28th, 1919: Treaty of the Riechstag in ratified in Berlin.
March, 1920: Republic of Russia is stable. American troops exit Russia.
March 18th, 1921: Germany defeats Polish nationalists at the Battle of Warsaw.
February 22nd, 1922: Egypt is declared an independent country, although Germany has the right to military bases and government influence.
June 30th, 1922: Ireland gains full independence from Britain, with the approval of Germany.
October 1922: Benito Mussolini and the "Blackshirts" stage the March on Rome coup.
1924: Scotland breaks away from the Republic of Britain and creates its own Republic of Scotland.
1925: Ireland and Scotland form the Gallic Union. Both states remain allies of Germany.
October 29th, 1929: The New York stock market crashes. The Great Deppression begins.