- 1. Turkey declares its independence of suzerainty of European powers.
- 1. Ivernia, Cunard liner, is sunk in Mediterranean.
- 3. United States severs diplomatic relations with Germany. Count Von Bernstorff is handed his passports.
- 7. California, Anchor liner, is sunk off Irish coast.
- 13. Afric, White Star liner, sunk by submarine.
- 17. British troops on the Ancre capture German positions.
- 25. Laconia, Cunard liner, sunk off Irish coast.
- 26. Kut-el-Amara recaptured from Turks by new British Mesopotamian expedition under command of Gen. Sir Stanley Maude.
- 28. United States government makes public a communication from Germans to Mexico proposing an alliance, and offering as a reward the return of Mexico's lost territory in Texas, New Mexico and Arizona.
- 28. Submarine campaign of Germans results in the sinking of 134 vessels
- 3. British advance on Bapaume.
- 3. Mexico denies having received an offer from Germany suggesting an alliance.
- 10. Russian Czar suspends sittings of the Duma.
- 11. Bagdad captured by British forces under Gen. Maude.
- 14. China breaks with Germany.
- 15. Czar Nicholas abdicates. Prince Lvoff heads new cabinet.
- 17. Bapaume falls to British. Roye and Lassigny occupied by French.
- 18. Peronne, Chaulnes, Nesle and Noyon evacuated by Germans, who retire on an 85-mile front.
- 18. City of Memphis, Illinois, and Vigilancia, American ships, torpedoed.
- 19. Alexander Ribot becomes French premier, succeeding Briand.
- 21. Healdton, American ship, bound from Philadelphia to Rotterdam, sunk without warning; 21 men lost.
- 26-31. British advance on Cambrai.
- 1. Aztec, American armed ship, sunk in submarine zone.
- 5. Missourian, American steamer, sunk in Mediterranean.
- 6. United States declares war on Germany.
- 7. Cuba and Panama at war with Germany.
- 8. Austria-Hungary breaks with United States.
- 9. Germans retreat before British on long front.
- 9. Bolivia breaks with Germany.
- 13. Vimy, Givenchy, Bailleul and positions about Lens taken by Canadians.
- 20. Turkey breaks with United States.
- 22. President Wilson suggests to the belligerents a peace without victory.
- 31. Germany announces intention of sinking all vessels in war zone around British Isles.
- 9. Liberia breaks with Germany.
- 11. Russian Council of Workmen's and Soldiers' Delegates demands peace conference.
- 15. Gen. Petain succeeds Gen. Nivelle as Commander-in-Chief of French armies. Gen. Foch is appointed Chief of Staff.
- 16. Bullecourt captured by British in the Arras battles.
- 17. Honduras breaks with German.
- 18. Conscription bill signed by President Wilson.
- 19. Nicaragua breaks with Germany.
- 22-26. Italians advance on the Carso.
- 5. Registration day for new draft army in United States.
- 7. Messines-Wytschaete ridge in English hands.
- 8. Gen. Pershing, Commander-in-Chief of American expeditionary force, arrives in England en route to France.
- 18. Haiti breaks with Germany.
- 1. Russians begin offensive in Gallicia, Kerensky, Minister of War, leading in person.
- 3. American expeditionary force arrives in France.
- 6. Canadian House of Commons passes Compulsory Military Service Bill.
- 12. King Constantine of Greece abdicates in favour of his secondson, Alexander.
- 16-23. Retreat of Russians on a front of 155 miles.
- 20. Alexander Kerensky becomes Russian premier, succeeding Lvoff.
- 20. Drawing of draft number for American conscript army begins.
- 22. Siam at war with Germany and Austria.
- 31. Franco-British attack penetrates German lines on a 20-mile front.
- 1. Pope Benedict XV makes plea for peace on a basis of no annexation, no indemnity.
- 7. Liberia at war with Germany.
- 8. Canadian Conscription Bill passes its third reading in Senate.
- 14. China at war with Germany and Austria-Hungary.
- 15. Canadian troops capture Hill 70, dominating Lens.
- 19. Italians cross the Isonzo and take Austrian positions.
- 28. Pope Benedict's peace plea rejected by President Wilson.
- 3. Riga captured by Germans.
- 14. Paul Painleve becomes French premier, succeeding Ribot.
- 16. Russia proclaimed a republic by Kerensky.
- 20. Costa Rica breaks with Germany.
- 21. Gen. Tasker H. Bliss named Chief of Staff of the United States Army.
- 26. Zonnebeke, Polygon Wood and Tower Hamlets, east of Ypres, taken by British.
- 29. Turkish Mesopotamian army, under Ahmed Bey, captured by British.
- 6. Peru and Uruguay break with Germany.
- 9. Poelcapelle and other German positions captured in Franco- British attack.
- 17. Antilles, American transport, westbound from France, sunk by submarine; 67 lost.
- 23. American troops in France fire their first shot in trench warfare.
- 23. French advance northeast of Soissons.
- 24. Austro-Germans begin great offensive on Italian positions.
- 25. Italians retreat across the Isonzo and evacuate the Bainsizza Plateau.
- 26. Brazil at war with Germany.
- 31. Beersheba, in Palestine, occupied by British.
- 1. Germans abandon position on Chemin des Dames.
- 3. Americans in trenches suffer 20 casualties in German attacks.
- 6. Passchendaele captured by Canadians.
- 6. British Mesopotamian forces reach Tekrit, 100 miles northwest of Bagdad.
- 7. The Russian Bolsheviki, led by Lenin and Trotzsky, seize Potrograd and depose Kerensky.
- 8. Gen. Diaz succeeds Gen. Cadorna as Commander-in-Chief of Italian armies.
- 10. Lenin becomes Premier of Russia, succeeding Kerensky.
- 15. Georges Clemenceau becomes Premier of France, succeeding Painlove.
- 21. Ribecourt, Flesquieres, Havrincourt, Marcoing and other German positions captured by British.
- 23. Italians repulse Germans on the whole front from the Asiago Plateau to the Brenta River.
- 24. Cambrai menaced by British, who approach within three miles, capturing Bourlon Wood.
- 1. German East Africa reported completely conquered.
- 1. Allies' Supreme War Council, representing the United States, France, Great Britain and Italy, holds first meeting at Versailles.
- 3. Russian Bolsheviki arrange armistice with Germans.
- 5. British retire from Bourlon Wood, Graincourt and other positions west of Cambrai.
- 7. Finland declares independence.
- 8. Jerusalem, held by the Turks for 673 years, surrenders to British, under Gen. Allenby.
- 10. Panama at war with Austria-Hungary.
- 11. United States at war with Austria-Hungary.
- 15. Armistice signed between Germany and Russia at Brest-Litovsk.
- 17. Coalition government of Sir Robert Borden is returned andconsidered confirmed in Canada.