History of the United Kingdom during World War I
The United Kingdom of Great Britain and Ireland—then consisting of England, Scotland, Wales, and the whole of Ireland—was one of the Allied Powers during the First World War of 1914–1918, fighting aga...
Military history of the United Kingdom during World War II
Britain, along with most of its dominions, Crown colonies, and British India, declared war on Nazi Germany in 1939. War with Japan began in 1941, after it attacked British colonies in Asia. The Axis p...
1915 in the United Kingdom
Events from the year 1915 in the United Kingdom. This year is dominated by World War I, which had broken out in the August of the previous year.