The outbreak of war in August 1914 was greeted with enthusiasm in Britain. But to meet its commitment to its allies, the nation would have to expand its small professional army and make it ready for war as quickly as possible.
Field Marshal Sir Douglas Haig commanded the British Army when it achieved arguably its greatest victories, those over the Germans on the Western Front. But for many his leadership was marked by unacceptable losses.
Here we look at some of the Christmas cards sent by soldiers during the First World War, and how they helped ease the pressures of life on the front line.
The German Spring Offensive saw mobile warfare return to the Western Front. Despite early gains, the Germans exhausted themselves, setting the stage for a successful Allied counter-offensive.
General Sir Edmund Allenby led the British Empire to victory in the Middle East in 1918. He successfully pioneered the combined use of infantry, cavalry and aeroplanes at the Battle of Megiddo.
Fought in September 1918, this was the climactic battle of the Sinai and Palestine campaign of the First World War. Ottoman forces found themselves encircled by British Empire forces under General Edmund Allenby.
The Battle of Loos took place on the Western Front in September-October 1915. At the time, it was the largest British offensive of the First World War.
In July 1917, the British and French launched a massive offensive near the Belgian city of Ypres. The bitter struggle that followed came to symbolize the horrors of trench warfare.
As the entire nation mobilised for the First World War, women took up new challenges. Many of these opportunities had previously been off limits, including military service.
Join Dr Ruadhan Scrivener-Anderson as he looks at selection, socialisation and the development of group identity within The Black Watch in the lead-up to the First World War.
Explore the history of Caribbean people in the British Army, and of the British Army in the Caribbean, through this virtual tour of the West Indian Soldier exhibition.
Explore the history of the British Army in India and the British Empire's Indian armies through this interactive timeline packed with over 200 sources.
