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.
This unit was formed as the Women's Army Auxiliary Corps in 1917 to free up more men to fight in the First World War. It was the first time women had served in the British Army other than as nurses.
In the autumn of 1914, British soldiers fought alongside the Japanese in China. Their goal was the German naval base at Tsingtao, which finally fell in November after a two-month siege.
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.
In June 1916, a British military mission began recruiting a local force in neutral Persia. Its goal was to bolster Allied interests and prevent enemy influence in the region.
During 1915, the British and French undertook a series of unsuccessful attacks against the Germans on the Western Front. For both sides it was a tough learning experience.
In 1950, the Cold War heated up significantly with the outbreak of conflict in Korea. This three-year struggle left millions dead, and its legacy remains of huge global consequence today.
Formed in 1915, this British Army regiment was composed of volunteers from the West Indies and served in various theatres of the First World War. It was disbanded in 1921, shortly after the end of the conflict.
One hundred years ago in June 1918, Major John Carter was serving as an intelligence officer in Italy assisting in a top secret and pioneering mission to parachute agents behind enemy lines.