|
| Theatres | ||
|---|---|---|
| Western | Eastern | Italian |
| Caucasian | Middle Eastern | Balkan |
| African | Naval | Air |
| Politics | Asian and Pacific | Gallipoli |
| Dates | Events | |
|---|---|---|
| December 20, 1914 – March 17, 1915 | First Battle of Champagne. | |
| January 28 – February 3 | The Ottomans fail to capture the Suez Canal. | Details |
| January 31 | Battle of Bolimov. First German use of chemical weapons. | Details |
| February 4 | Germany begins unrestricted submarine warfare against merchant vessels. | Details |
| February 7–22 | Second Battle of the Masurian Lakes. The Russian X Army is defeated. | Details |
| February 17–28 | Ahead of the Gallipoli Campaign, HMS Ark Royal, with RNAS aircraft, commence air operations. | Details |
| February 19 | British and French naval attack on the Dardanelles. The Gallipoli Campaign begins. | Details |
|
| Theatres | ||
|---|---|---|
| Western | Eastern | Italian |
| Caucasian | Middle Eastern | Balkan |
| African | Naval | Air |
| Politics | Asian and Pacific | Gallipoli |
| Dates | Events | |
|---|---|---|
| December 20, 1914 – March 17, 1915 | First Battle of Champagne. | |
| January 28 – February 3 | The Ottomans fail to capture the Suez Canal. | Details |
| January 31 | Battle of Bolimov. First German use of chemical weapons. | Details |
| February 4 | Germany begins unrestricted submarine warfare against merchant vessels. | Details |
| February 7–22 | Second Battle of the Masurian Lakes. The Russian X Army is defeated. | Details |
| February 17–28 | Ahead of the Gallipoli Campaign, HMS Ark Royal, with RNAS aircraft, commence air operations. | Details |
| February 19 | British and French naval attack on the Dardanelles. The Gallipoli Campaign begins. | Details |