The success of the Allies in the west was in a measure offset by Teutonic victories in the east. When the invasion of Belgium began, Russia made immediate efforts to counteract by invasion of East Prussia.
The French were generous in giving us assistance in corps and army artillery, with its personnel, and we were confident from the start of our superiority over the enemy in guns of all calibers.
The eventual place the American army should take on the western front was to a large extent influenced by the vital question of communication and supply.