Division's primarily operates in London and Windsor, the Scots Guards have mounted these postings when the sovereign is in Edinburgh. These sentry postings are also mounted at other times of the year, including Lord Commissioner's Week, and the month of the Royal Edinburgh Military Tattoo. These sentries may also sometimes serve as the guard of honour for the Royal Edinburgh Military Tattoo. As there is no guard battalion permanently based in the city, sentries are provided by whichever resident infantry battalion is at Redford Barracks. Until 2001, sentries were permanently posted on the Esplanade at the entrance of the castle, ostensibly as the guards to the Honours of Scotland housed inside. The sentries were changed every hour. However, cutbacks in the size of the army led to the permanent castle guard being abolished. As part of the reorganisation of the infantry following the 2003 defence review, the 1st and 2nd Battalions, Royal Regiment of Scotland (the Royal Scots Borderers and Royal Highland Fusiliers) were permanently based in Edinburgh, rotating between 19 Light Brigade or 52 Infantry Brigade. Whichever battalion is assigned to the 52 Brigade was responsible for performing public duties in Edinburgh. As part of the 2010 defence review, further reforms to the infantry led to the reduction of the 5th Battalion, Royal Regiment of Scotland to an incremental company (similar to the three companies of foot guards stationed in London) which is now a public duties unit permanently based in Scotland. See also Guard of honour Protective security unit Royal guard References Paget, J; 'The Story of the Guards'; London; Osprey Publishing; 1976 Sullivan-Tailyour, J. R.; 'Changing the guard at Buckingham Palace'; London; International Partnership in Marketing Services; 1999 Tibballs, G; 'Soldier Soldier: The Regiment Files'; London; BCA; 1995 External links Changing the Guard at Buckingham Palace, times, schedules and more Household Division Ceremonial Events The Queen's Guard on the British Army website The Queen's Life Guard on the British Army website Changing of the Guard on the British Monarchy website Will The Royal Canadian Air Force Pass The British Army's Drill Test? | Forces TV British Army traditions Guards Division (United Kingdom) Household Cavalry Royal guards Positions within the British Royal Household British ceremonial units