We're seeing the opposite play out in real time in Ukraine though. One side tells its soldiers that they are fighting a desperate battle to repel an invading dictator. The other side tells its soldiers that they are going on a training exercise in Belarus, then shoves them across the border telling them they will be welcomed as liberators, then finally switches to some handwavy explanation about nazis. The latter has massively worse morale and battlefield performance than the former.

And not only that, the bad-faith communication goes back decades, and the equipment the invaders are fighting with is in disrepair because local administrators and subcontractors have been lying to those in charge while pocketing maintenance funds. We're seeing, in a massive way, the havoc that a culture of deceit wreaks on any organization or society's ability to function coherently.