Was the Red Ball Express Ever Attacked?

I've heard that most of the breakdowns/problems were caused in part to the impossible schedule they had to follow: transport over great distances 24/7, weather.....

Was there a concerted attempt by the Germans to attack the Express or just random skirmishes.....?

Yes, add the wear and tear on the roads caused by so much traffic, lack of spares and junk left scattered about on roads.

No, the trucks were quickly allowed to use full headlights at night. I do not know of any convoys being ambushed by ground troops.

Geoffrey Sinclair Remove the nb for email.

While I ahve no aecdotal information for you, I have this.

3rd Army's drive on the Rhine left wide open flanks - no other force moved that fast or that far, so Patton's flanks were wide open. OSS and SOE, working with Partisans, would set up blocking positions on these flanks when intelligence found German units. Several Jedburgh teams were either air-landed or parachuted, several times, in support of this drive. Some leakers would have had to occur, and these units would then threaten the supply routes. I am certain that the Express got hit a couple times. I have read tht they did have high losses when they encoutered the enemy, simply as each trunk had two guys and little weapons. They couldnt' fight.

The fastest advance by any Allied force in NW Europe was the advance by 2nd British Army from the Seine to Antwerp.

After the decisive battle of Normandy, the Wehrmacht were in full retreat from France and the Allies in pursuit, and open flanks ceased to be much of a problem until the Germans re-established a front line.