Members of the regiment took part in the Nile Expedition of 1884 and the following year provided a company of sharpshooters to the Battleford column during the North-West Rebellion, where the regiment suffered its first two casualties at the
Battle of Cut Knife Hill. The company was removed from active service on 24 July 1885. During the
Second Boer War the regiment contributed volunteers for the various Canadian contingents, mainly the 2nd (Special Service) Battalion, Royal Canadian Regiment of Infantry.
Great War The GGFG perpetuates two battalions of the Canadian Expeditionary Force who took part in the First World War. The
2nd Battalion (Eastern Ontario Regiment), CEF "The Iron Second", which was a part of the 1st Infantry Brigade,
1st Canadian Division, and saw continuous service on the Western front from 1915 to end of war in 1918. The 2nd Battalion also fought at the battles of Ypres, St. Julien, Festubert, Pozières, Vimy (1917), Arleux, Hill 70, Passchendaele, Amiens, and Canal du Nord, to name only a few. By the end of the war, 242 officers and 5,084 other ranks had fought with the battalion. Of those, 52 officers and 1,227 other ranks were killed. The
77th Battalion (Ottawa), CEF was authorized on 10 July 1915 and embarked for Great Britain on 19 June 1916. It provided reinforcements for the Canadian Corps in the field until 22 September 1916, when its personnel were absorbed by the
47th Battalion (British Columbia), CEF, and
73rd Battalion (Royal Highlanders of Canada), CEF, and the battalion was disbanded. The honours and traditions of these battalions are perpetuated by the GGFG.
Second World War , 1944 During the Second World War the GGFG was mobilized in May 1940. In 1942 the regiment was re-roled to become an armoured unit to address the need for more armoured units in the Canadian Army, assuming the name "21st Canadian Armoured Regiment (GGFG)". It embarked for Great Britain on 23 September 1942. On 24 July 1944, it landed in France as part of the
4th Armoured Brigade,
4th Canadian Armoured Division, and it continued to fight in northwest Europe until the end of the war taking part in the battle of Normandy, the battle of the Scheldt, and the Rhineland. Over the course of the war the regiment's casualties were 101 dead and 284 wounded. The overseas regiment was disbanded on 31 January 1946.
Modern day In the intervening years, members have participated in United Nations and NATO operations, including service in the Cyprus, Somalia, the Former Republic of Yugoslavia, Haiti, Ethiopia, and Sierra Leone. During the Canadian mission in Afghanistan, the GGFG deployed members, taking part Task Force 3-06, Task Force 3-08, and Task Force 1-10 in Kandahar, as well as the Operation Attention training mission in Kabul. The GGFG provides individual augmentation to the Regular Force when they deploy on operations. The regiment deployed members on
Operation Impact in Iraq and Jordan, Operation Calumet in Egypt, Operation Soprano in Sudan,
Operation Reassurance in Poland and Latvia, and
Operation Unifier in Ukraine. The regiment maintains domestic response capability to support Canadians at home in natural disasters or emergencies. The regiment deployed soldiers to the
1998 Ice Storm, floods 2017 and 2019, and during the
COVID-19 pandemic in 2020. File:GGFG Kandahar 1 RCR BG.jpg|GGFG soldiers on patrol in Kandahar as part of the 1 RCR Battle Group in 2010. File:GGFG soldier engaging target during live fire training.jpg|A GGFG soldier engaging a target during live fire training. File:GGFG exercise.jpg|GGFG soldiers on exercise in Petawawa. File:GGFG soldiers on exercise in Petawawa.jpg|GGFG soldiers on a training exercise in Petawawa. == Victoria Cross recipients ==