This article shows the dates Divisions entered the Great War in France and Flanders to the date of the armistice or their amalgamation/dissolution.
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| Division. | Served in France and Flanders. | Remarks. |
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| 1st Cavalry (Regular). | August-14 | Armistice | |
| 2nd Cavalry (Regular). | September-14 | Armistice | Formed in France. |
| 3rd Cavalry (Regular). | October-14 | Armistice | |
| 4th Cavalry (Indian). | October-14 | February-18 | The 4th and 5th Cavalry Divisions were originally the 1st and 2nd Indian Cavalry Divisions. |
| 5th Cavalry (Indian). | December-14 | February-18 |
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| Guards (Regular). | August-15 | Armistice | Formed in France. |
| 1st (Regular). | August-14 | Armistice | |
| 2nd (Regular). | August-14 | Armistice | |
| 3rd (Regular). | August-14 | Armistice | |
| 4th (Regular). | August-14 | Armistice | |
| 5th (Regular). | August-14 | November-17 | |
| | | April-18 | Armistice | |
| 6th (Regular). | September-14 | Armistice | |
| 7th (Regular). | October-14 | Armistice | |
| 8th (Regular). | November-14 | Armistice | |
| 9th (Scottish) (New Army). | May-15 | Armistice | |
| 11th (Northern) (New Army). | July-15 | Armistice | |
| 12th (Eastern) (New Army). | May-15 | Armistice | |
| 14th (Light) (New Army). | May-15 | Armistice | The 14th Division was reduced to cadre in April 1918, returned to England in June, and after being reconstituted with fresh battalions, went back to France in July, 1918. |
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| 15th (Scottish) (New Army). | July-15 | Armistice | |
| 16th (Irish) (New Army). | December-15 | Armistice | The 16th Division was reduced to cadre in April 1918, returned to England in June, and was reconstituted with 5 English, 2 Scottish, 1 Welsh, and 1 Irish battalions, returning to France in July/August, 1918. |
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| 17th (Northern) (New Army). | July-15 | Armistice | |
| 18th (Eastern) (New Army). | July-15 | Armistice | |
| 19th (Western) (New Army). | July-15 | Armistice | |
| 20th (Light) (New Army). | July-15 | Armistice | |
| 21st (New Army). | September-15 | Armistice | |
| 22nd (New Army). | September-15 | November-15 | |
| 23rd (New Army). | August-15 | November-17 | |
| 24th (New Army). | August-15 | Armistice | |
| 25th (New Army). | September-15 | Armistice | The 25th Division was reduced to cadre in June, 1918, and proceede to England, where, in July, the cadre battalions were made up with drafts. In August the Division made up one full strength brigade for service in North Russia, and the remaining battalions were broken up. The Divisional and Brigade Headquarters returned to France in September, 1918, and reconstituted with nine battalions from Italy. |
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| 27th (Regular). | December-14 | November-15 | |
| 28th (Regular). | January-15 | November-15 | |
| 29th (Regular). | March-16 | Armistice | |
| 30th (Regular). | November-15 | Armistice | The 30th Division was reduced to cadre in May, 1918, and reconstituted with battalions from other divisions, including five from Palestine, in late June, 1918. |
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| 31st (Regular). | March-16 | Armistice | |
| 32nd (Regular). | November-15 | Armistice | |
| 33rd (Regular). | November-15 | Armistice | |
| 34th (Regular). | January-16 | Armistice | The 34th Division was reduced to cadre in May, 1918, and reconstituted in June with battalions from Palestine. |
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| 35th (Regular). | January-16 | Armistice | |
| 36th (Ulster) (New Army). | October-15 | Armistice | |
| 37th (New Army). | July-15 | Armistice | |
| 38th (Welsh) (New Army). | December-15 | Armistice | |
| 39th (New Army). | March-16 | Armistice | The 39th Division was reduced to cadre in May, 1918, and was not reconstituted. |
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| 40th (New Army). | June-16 | Armistice | The 40th Division was reduced to cadre in May, 1918, and reconstituted with low category battalions in June, 1918. |
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| 41st (New Army). | May-16 | November-17 | |
| | | March-18 | Armistice | |
| 42nd (East Lancashire) T.F. | March-17 | Armistice | |
| 46th (North Midland) T.F. | February-15 | Armistice | The 46th Division commenced to move to Egypt in January, 1916, and after Divisional Headquarters and two Infantry Brigades had arrived there the move was cancelled and the whole Division was in France again by the middle of February, 1916. |
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| 47th (2nd London) T.F. | March-15 | Armistice | |
| 48th (South Midland) T.F. | March-15 | November-17 | |
| 49th (West Riding) T.F. | April-15 | Armistice | |
| 50th (Northumbrian) T.F. | April-15 | Armistice | The 50th Division was reduced to cadre in June, 1918, and was reconstituted in July, 1918, with eight battalions from Salonika and two from another division in France. |
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| 51st (Highland) T.F. | April-15 | Armistice | |
| 52nd (Lowland) T.F. | April-18 | Armistice | |
| 55th (West Lancashire) T.F. | January-16 | Armistice | Assembled in France. |
| 56th (1st London) T.F. | January-16 | Armistice | Assembled in France. |
| 57th (2nd West Lancashire) T.F. | February-17 | Armistice | |
| 58th (2/1st London) T.F. | January-17 | Armistice | |
| 59th (2/North Midland) T.F. | February-17 | Armistice | The 59th Division was reduced to cadre in May, 1918, and was reconstituted with low category battalions in June. |
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| 60th (2/2nd London) T.F. | June-16 | November-16 | |
| 61st (2/South Midland) T.F. | May-16 | Armistice | |
| 62nd (2/West Riding) T.F. | January-17 | Armistice | |
| 63rd (Royal Naval). | May-16 | Armistice | The 63rd Division served at Antwerp in October, 1914. It was then known as the Royal Naval Division; it received the number 63rd in July, 1916. |
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| 66th (2/East Lancashire) T.F. | March-17 | Armistice | The 66th Division was reduced to cadre in May, 1918, and was reconstituted in July/September, 1918. With the South African Brigade, two battalions from the old 66th Division, four from Salonika, and one from the old 30th Division. |
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| 74th (Yeomanry). | May-18 | Armistice | |
| 3rd Indian (Lahore). | September-14 | December-15 | |
| 7th Indian (Meerut). | October-14 | December-15 | |
| 1st Canadian. | February-15 | Armistice | |
| 2nd Canadian. | September-15 | Armistice | |
| 3rd Canadian. | January-16 | Armistice | Formed in France. |
| 4th Canadian. | August-16 | Armistice | |
| 1st Australian. | March-16 | Armistice | |
| 2nd Australian. | March-16 | Armistice | |
| 3rd Australian. | November-16 | Armistice | |
| 4th Australian. | June-16 | Armistice | |
| 5th Australian. | June-16 | Armistice | |
| New Zealand. | April-16 | Armistice | |
