In the Canadian Forces, there are about 12 people at this grade, but this would include the Navy, Army, and Air Force.
If the CF's composition is about 40% army, then usually it means 4 to 6 people out of the 12 will be Army Lieutenant-Generals. The "Chief of the Land Staff" (i.e. senior army officer) also holds this rank. The rest of the Lieutenant-Generals usually hold various senior staff positions for the CF in general.
Just over 100. See related link.
300
Marshell
As the US Civil War unfolded, the US army was small and did not have many generals. In order to command all the Union recruits, new generals had to be appointed. In 1861, Lincoln appointed one hundred and twenty six generals.
Hitler's SS and regular army had several hundreds of them (plus 20 Field Marshals), but the present German army (the Bundeswehr) has three full generals that are now on active service: Volker Wieker, Werner Freers and Hans-Lothar Domröse.
Robert E. Lee was the primary general, although he had many sub-generals under him.
1 full general, 5 lieutenant generals and about 60 major generals
Sir Rober Borden__The Canadian Corp had 3 commanders - Lieutenant General Sir E.A.H. Alderson until 1916, then Lieutenant General Sir Julian Byng. Byng was promoted and command passed to Sir Arthur Currie in 1917. Currie was the first Canadian to be commander. FYI: Borden was Prime Minister, not Commander of Canadian Corp.
Many
5
4 star generals are in the US
300
10
The US Army had over 1,100 Generals during WW2.
two hundred and fifty six
The following are the names of some Union generals: Major General George B. McClellan, one time commander of the Army of the Potomac. Major General William S. Rosecrans, once leader of the Army of the Cumberland. Major General Don Carlos Buell, a commander of the Army of the Ohio. Lieutenant General Ulysses S. Grant, once the leader of the Army of the Tennessee, and finally the General in Chief of all Federal armies. This is only a partial list of the most familiar names that led the Union to ultimate victory, and there were many more generals in the service of the United States during the war.
There were many, many Generals at D-Day. I would estimate that over 50 General officers of the British, American and Canadian forces were on France by nightfall of D-Day.
At Least 10,000