It was formed in France in 1915 and served on the Western Front as part of the 1st Cavalry Division until the end of the war.

On the same date, 1/1st Warwickshire Battery, Royal Horse Artillery (TF) (transferred from the 2nd Cavalry Division) and a signal troop joined.

[8] By the Armistice, the division was north of Mons, about 9 miles east of Ath on the Fifth Army front.

On 16 November 1918, orders were received that the 1st Cavalry Division would lead the advance of the Second Army into Germany.

On 12 December, the brigade crossed the Rhine on the Hohenzollern Bridge and reached its position on the perimeter of the bridgehead the next day.