The scene in the book is just so familiar to the lines in Ukraine these days, nearly a hundred years later. Instead of spotter planes near the dawn of aviation, we have satellites and drones (similarly quite new in the role). Instead of just shells and fuzing experts, we have FPV drones and much more sophisticated shells. Instead of buddies from the same towns all huddled together in cold muddy holes, we have deracinated units spread far and wide in laying in fear of thermal imaging. This results in a no mans land again, but a dozen kilometers wide instead of a few hundred meters wide, and somehow more psychologically damaging.
My point is that absent any tech that will miraculously be invented and deployed widely in the new few weeks, the Iran war, if it should be a ground one, is going to be just like Ukraine is today, which is somehow a worse version of trench warfare.
Even casual Victoria II players know that WW1 is essentially the final boss of the game. And the 'lesson' of Vicky II is essentialy: Do not fight WW1, it ruins Everything.
To be clear: The US is choosing to fight a worse version of WW1 without even a stated (or likely even known) condition of victory. We're about to send many thousands boys to suffer and die for not 'literally nothing', but actually literally nothing.