overseas service) and 2nd Line (home service for those unable or unwilling to serve overseas) units. Later, a 3rd Line was formed to act as a reserve, providing trained replacements for the 1st and 2nd Line regiments. 1/1st Sherwood Rangers Yeomanry In the First World War, the 1/1st Sherwood Rangers served in the Nottinghamshire and Derbyshire Mounted Brigade (later 7th Mounted Brigade) in Egypt as cavalry. In 1915, it was despatched to Gallipoli performing an infantry role and served as such for three months, receiving the "King's Colour" in recognition of its gallantry. The Regiment then returned to Egypt as cavalry, serving thereafter in North Greece and Palestine, taking part in the great cavalry advance from Gaza to Aleppo. 2/1st Sherwood Rangers Yeomanry The 2nd Line regiment was formed at Retford in 1915 and in March joined the 2/1st Nottinghamshire and Derbyshire Mounted Brigade. By June, the brigade was in the 2/2nd Mounted Division in the King's Lynn area. On 31 March 1916, the remaining Mounted Brigades were ordered to be numbered in a single sequence and the brigade became the 9th Mounted Brigade (and the division 3rd Mounted Division). In July 1916, there was a major reorganization of 2nd Line yeomanry units in the United Kingdom. All but 12 regiments were converted to cyclists; the 2/1st Sherwood Rangers Yeomanry remained mounted and transferred to the 1st Mounted Brigade in the new 1st Mounted Division (3rd Mounted Division redesignated) at Thorndon Park, Brentwood. The regiment was converted to cyclists in August 1917 and joined 11th Cyclist Brigade in The Cyclist Division where it remained until the end of the war, in the Canterbury area. 3/1st Sherwood Rangers Yeomanry The 3rd Line regiment was formed in 1915 and in the summer it was affiliated to a Reserve Cavalry Regiment at Aldershot. In the summer of 1916, it was affiliated to the 1st Reserve Cavalry Regiment, also at Aldershot. Early in 1917, it was absorbed into the 3rd Reserve Cavalry Regiment at Aldershot. Between the wars Post war, a commission was set up to consider the shape of the Territorial Force (Territorial Army from 1 October 1921). The experience of the First World War made it clear that cavalry was surfeit. The commission decided that only the 14 most senior regiments were to be retained as cavalry (though the Lovat Scouts and the Scottish Horse were also to remain mounted as "scouts").