We never heard what became of those Belgians.

Presumably at the advance of the Germans coming down on them countlessly, like an Old Testament locust plague, they fell back and, going round Brussels, went northward toward Antwerp, to join the main body of their own troops.

Or they may have reached the lines of the Allies, to the south and westward, toward the French frontier.

One guess would be as good as the other.
One of the puzzling things about the early mid-August stages of the war was the almost instantaneous rapidity with which the Belgian army, as an army, disintegrated and vanished.

To-day it was here, giving a good account of itself against tremendous odds, spending itself in driblets to give the Allies a chance to get up.