The Battle of Vimy Ridge
A corps is two or more divisions. Frequently in the armies of both sides in WWI a corps had three divisions, but it could have more, There is no set number, just however many divisions seems best to the army commander. (A field army is two or more corps). So the answer depends on the size of the divisions fielded by the country of whose army the corps is a part. British, French and German divisions were around 12-15,000 men at full strength. US divisions of WWI were huge, more than 26,000 men. So, a US corps with only two divisions was bigger than any other nation's corps with three.
ANSWER The General Philip Sheridan. His division succeeded in withstanding and holding its position for several hours during the first day of battle, against the assaults of three Confederate divisions: that of Cheatham and two divisions of the II Corps of General Hardee. Sheridan's brilliant resistance gained the necessary time to allow the Union Army Commander, Gen. Rosencrans to reorganize the retreating Union divisions of his right wing and create a new battle array.
During the Civil War, a corps typically comprised two to five divisions. Each division was further broken down into brigades, and the exact number could vary depending on the specific army and the circumstances of the campaign. Generally, a corps was designed to be a flexible and mobile unit, enabling it to operate effectively in various combat situations.
The Americans. United States Marine Corps.
The Marine Corps reached a peak strength of over 700,000. There were six Marine Divisions, all infantry, and all fought in the Pacific. There were also a few Air Wings, and some tank battalions. The WWII Marine Corps was about one-tenth the size of the US Army, and fielded about one-fifteenth as many divisions.
There were no British divisions in the Canadian Corps, only Canadian divisions
how many divisions are in a corps
Canadian Corps ended in 1918.
Canadian Corps was created in 1915.
Canadian Aviation Corps was created in 1914.
Canadian Aviation Corps ended in 1915.
Canadian Provost Corps ended in 1968.
Canadian Provost Corps was created in 1939.
II Canadian Corps was created in 1943.
Canadian Intelligence Corps was created in 1942.
Canadian Forestry Corps was created in 1916.
Canadian Intelligence Corps's motto is 'Action From Knowledge'.