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The Welsh Guards were formed in 1915 and therefore are the most junior of the five guards regiments.

Battle Honours WW1 - 2 Battalions
Ypres, Loos, Somme, Arras, Sambre, Flanders, Ginchy, Flers-Courcelette, Morval, Pilckem, Poelcappelle, Passchendale, Cambrai, Bapaume, Albert, Drocourt-Queant, Hindenberg Line, Havrincourt, Canal du Nord, Selle.

Battle Honours WW2
Defence of Arras, Boulogne, St. Omer la Bassee, Bourgebus Ridge, Cagny, Mount Pincon, Brussels, Hechtel, Nederrijn, Rhineland, Lingen, North West Europe, Fondouk, Djebel el Rhorab, Tunis, Hammam Lif, North Africa, Monte Ornito, Liri Valley, Monte Piccolo, Capture of Perugia, Arezzo, Advance to Florence, Gothic Line, Battaglia, Italy.

Falkland Islands 1982

Guards Museum, London (Army Museums Ogilby Trust)

Deployment
1st Battalion

1915.02 1st Battalion, Welsh Guards
raised
1914.08.18 France and Flanders 3 Gds Bde
1919.02-04 Gds Div demobilised
1919 London: Wellington Barracks
1921 London: Chelsea
1923 England: Aldershot 1 (Gds) Inf Bde
1925 England: Windsor
1927 London: Chelsea
1929 Egypt Cairo Brigade
1930 England: Warley 1 (Gds) Inf Bde???
1931 England: Aldershot 1 (Gds) Inf Bde
1932 England: Windsor
1933 London: Wellington Barracks 4 (Gds) Inf Bde
1935 London: Chelsea 4 (Gds) Inf Bde
1936 London: Wellington Barracks 4 (Gds) Inf Bde
1937.04 England: Aldershot 1 (Gds) Inf Bde
1939.04 Gibraltar
1939.11 France & Belgium LofC, BEF (HQ guard)
1940.06.16 UK 24 (Gds) Inf Bde
1941.06 UK Gds Armd Div
1941.09.15 UK Gds Support Group as lorried bn
1942.06.01 UK 32 Gds Bde
1944.06 NW Europe Gds Armd Div
1945.04 UK 22 Guards Brigade
1945.04.11 201 Gds Bde
1945.08.03 relieved
1945 London
1947 Palestine 1 Gds Bde
1948.03 London
1950.03 Germany 4 Gds Bde
1952.03 Berlin Berlin Bde
1953.03 UK
1953.09 Egypt
1956.03 England: Colchester 19 Inf Bde
1960.12 Germany 4 Gds Bde
1963.11 London
1965.10 Aden 24 Inf Bde
1966.10 London
1970.03 Germany: Münster 4 Armd Bde
1972.09 London
1976.10 (Cyprus) United Nations
1976.11 London
1978.07 Berlin Berlin Bde
1979.07 London
1982.04 (Falkland Islands) 5 Inf Bde
1982.06 London
1984.05 Germany: Hohne 22 Armd Bde
1986.03 (Northern Ireland)
1986.07 Hohne 22 Armd Bde
1988.11 London
1992.04 Northern Ireland: Londonderry 8 Inf Bde
1994.10 England: Tern Hill 143 Bde
1996.03 London
2000.04 England: Aldershot 12 Mech Bde
2000.04 England: Aldershot (Bruneval Barracks) 12 Mech Bde
2002.03 (Bosnia)
2002.09 England: Aldershot (Bruneval Barracks) 12 Mech Bde
2003.05 Wales: RAF St. Athan first posting of the Welsh Guards to Wales
2004.10 (Iraq): al Amarah Op Telic 5
2005.04 Wales: RAF St. Athan
2006.10 "Gurkha Reinforcement Company" attached
2006.10 (Bosnia)