While the popular conception was that the main problem was machine-gun fire making trench assaults over open ground simply impossible, the actual dynamic was more complex. In particular, it was possible to create the conditions for a successful assault on enemy forward positions – often with a neutral or favorable casualty ratio – through the use of heavy artillery barrages. The trap this created, however, was that the barrages themselves tore up the terrain and infrastructure the army would need to bring up reinforcements to secure, expand and then exploit any initial success. Defenders responded to artillery with defense-in-depth, meaning that while a well-planned assault, preceded by a barrage, might overrun the forward positions, the main battle position was already placed further back and well-prepared to retake the lost ground in counter-attacks. It was simply impossible for the attacker to bring fresh troops (and move up his artillery) over the shattered, broken ground faster than the defender could do the same over intact railroad networks. The more artillery the attacker used to get the advantage in that first attack, the worse the ground his reserves had to move over became as a result of the shelling, but one couldn’t dispense with the barrage because without it, taking that first line was impossible and so the trap was sprung.
(I should note I am using “railroad networks” as a catch-all for a lot of different kinds of communications and logistics networks. The key technologies here are railroads, regular roads (which might speed along either leg infantry, horse-mobile troops and logistics, or trucks), and telegraph lines. That last element is important: the telegraph enabled instant, secure communications in war, an extremely valuable advantage, but required actual physical wires to work. Speed of communication was essential in order for an attack to be supported, so that command could know where reserves were needed or where artillery needed to go. Radio was also an option at this point, but it was very much a new technology and importantly not secure. Transmissions could be encoded (but often weren’t) and radios were expensive, finicky high technology. Telegraphs were older and more reliable technology, but of course after a barrage the attacker would need to be stringing new wire along behind them connecting back to their own telegraph systems in order to keep communications up. A counter-attack, supported by its own barrage, was bound to cut these lines strung over no man’s land, while of course the defender’s lines in their rear remained intact.)
Bret Devereaux, “Collections: No Man’s Land, Part II: Breaking the Stalemate”, A Collection of Unmitigated Pedantry, 2021-09-24.
January 22, 2022
QotD: Breaking the trench stalemate with artillery
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