The French military is a professional one and only a handful of regiments accept foreign nationals. Obtaining a French visa (as a student, tourist, or worker) is completely unrelated to the French army. The best way to know how that works is to visit the 'ambassade de France' website in your country.
You cannot join French army if you are not French
He wasw a student and an Army officer.
He was a student and then an Army officer.
Her mission was to drive the occupying British army from France and return the French monarchy.
She lead the French army to save France from the English.
He was a French Army Officer who became the Emperor of France/
Hitler demanded that two thirds of France was to be occupied ,by the Germans .The french army was to be disbanded.
She was a leader of the French Army in 1429 and 1430.
The French army survivers were allowed to return to France.
Vichy France
Because the King of France sent them to help the Continental Army. France and England had been traditional enemies for a long time, but first the Continental Army had to demonstate that it had a chance of winning, so that French soldiers would not be thrown away on a lost cause.
Saint Joan of Arc led the French army to several victories that eventually forced the British out of France.