Earlier quoted context omitted.
>instead the armies would execute soldiers for cowardice // Was it not a necessity (on the basis of "winning" the trench warfare)? If you can go home to a nice feather bed and being looked after in a care home without even the appearance of an injury by presenting as having PTSD/shell-shock then the effect on moral and ability to force men to go over-the-top with the threat of capital punishment for desertion is goin…
Strangely it had no impact on the outcome. Marching millions of men 'over the top' to be mowed down by machine guns was pointless. Even though the tactic failed utterly, they kept doing it. Out of desperation? They executed a generation.
Perhaps there was some Gambler's fallacy involved - like wow, stopping shelling and blowing whistles before we attack somehow isn't fooling them, lets keep shelling whilst we walk on over no-man's land, it's got to work this time for sure; can't change it now, we've nearly won!??