| Dates |
Events |
|
| March 2 – August 4
|
Battle of Bitlis.
|
|
| May 7–10
|
Battle of Kondoa Irangi.
|
|
| May 10
|
Germany suspends unrestricted submarine warfare.
|
Details
|
| May 15 – June 10
|
Austro-Hungarian Strafexpedition in Trentino.
|
Details
|
| May 16
|
Signing of the Sykes-Picot Agreement between Britain and France defining their proposed spheres in the Middle East.
|
Details
|
| May 31 – June 1
|
Battle of Jutland between Britain's Grand Fleet and Germany's Hochseeflotte.
|
Details
|
| June 2–14
|
Battle of Mont Sorrel.
|
|
| June 4
|
The Brusilov Offensive begins.
|
|
| June 5
|
The Arab Revolt in Hejaz begins.
|
Details
|
| The HMS Hampshire is sunk off the Orkney Islands; Lord Kitchener dies.
|
Details
|
| June 10
|
Italy: Paolo Boselli succeeds Antonio Salandra as Prime Minister.
|
Details
|
| The Siege of Medina begins.
|
|
| June 10 – July 4
|
Battle of Mecca, Arabs capture the city.
|
Details
|
| June 30
|
Battle of the Boar's Head, diversion from the Battle of the Somme which began the next day.
|
|
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