They must not serve again in North America during the war but there was nothing in the terms to prevent their serving in Europe and relieving British regiments for service in America.

Gates had the courtesy to keep his army where it could not see the laying down of arms by Burgoyne's force.

About five thousand men, of whom sixteen hundred were Germans and only three thousand five hundred fit for duty, surrendered to sixteen thousand Americans.

Burgoyne gave offense to German officers by saying in his report that he might have held out longer had all his troops been British.

This is probably true but the British met with only a just Nemesis for using soldiers who had no call of duty to serve.
The army set out on its long march of two hundred miles to Boston.