The Lucknow Cavalry Brigade was a cavalry brigade of the British Indian Army formed in 1911 as a result of the Kitchener Reforms. It was mobilized as 8th (Lucknow) Cavalry Brigade at the outbreak of the First World War as part of the 1st Indian Cavalry Division and departed for France. It served on the Western Front with the division until it was broken up in March 1918.

The 1st King's Dragoon Guards was a cavalry regiment in the British Army. The regiment was raised by Sir John Lanier in 1685 as the 2nd Queen's Regiment of Horse, named in honour of Queen Mary, consort of King James II. It was renamed the 2nd King's Own Regiment of Horse in 1714 in honour of George I. The regiment attained the title 1st King's Dragoon Guards in 1751. The regiment served as horse cavalry until 1937 when it was mechanised with light tanks. The regiment became part of the Royal Armoured Corps in 1939. After service in the First World War and the Second World War, the regiment amalgamated with the 2nd Dragoon Guards in 1959 to form the 1st The Queen's Dragoon Guards.