page_title: History of the United Kingdom during the First World War
section_title: Army
hierarchical_section_title: History of the United Kingdom during the First World War / Armed forces / Army
caption_attribution_description: English: British volunteers for "Kitchener's Army" waiting for their pay in the churchyard of St. Martin-in-the-Fields, Trafalgar Square, London.
context_page_description: Great Britain was a leading Allied Powers during the First World War of 1914–1918, fighting against the Central Powers, especially Germany. The armed forces were greatly expanded and reorganised—the war marked the founding of the Royal Air Force. The highly controversial introduction, in January 1916, of conscription for the first time in British history followed the raising of the largest all-volunteer army in history, known as Kitchener's Army, of more than 2,000,000 men. The outbreak of war was a socially unifying event. Enthusiasm was widespread in 1914, and was similar to that across Europe.
  On the eve of war, there was serious domestic unrest amongst the labour and suffrage movements and especially in Ireland. But those conflicts were postponed. Significant sacrifices were called for in the name of defeating the Empire's enemies and many of those who could not fight contributed to philanthropic and humanitarian causes. Fearing food shortages and labour shortfalls, the government passed legislation such as the Defence of the Realm Act 1914, to give it new powers. The war saw a move away from the idea of "business as usual" under Prime Minister H. H.
context_section_description: The British Army during World War I was small in size when compared to the other major European powers. In 1914, the British had a small, largely urban English, volunteer force of 400,000 soldiers, almost half of whom were posted overseas to garrison the immense British Empire. (In August 1914, 74 of the 157 infantry battalions and 12 of the 31 cavalry regiments were posted overseas.) This total included the Regular Army and reservists in the Territorial Force. Together they formed the British Expeditionary Force (BEF), for service in France and became known as the Old Contemptibles. The mass of volunteers in 1914–1915, popularly known as Kitchener's Army, was destined to go into action at the battle of the Somme. In January 1916, conscription was introduced, and by the end of 1918, the army had reached its peak of strength of 4.5 million men.
caption: August 1914: London army volunteers await their pay at St. Martin-in-the-Fields
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