It means that someone was attracted from the second group, mostly the letter Z flashes on military equipment.

The uniqueness of this operation is that Russia does not have a numerical superiority over the well-armed and motivated regular troops of the Armed Forces of Ukraine, and this contradicts all the canons of military science (the attacking side must have a three-sixfold numerical advantage). The success of the operation is largely due to Russia's dominance in the air and preventive strikes with high-precision weapons on military infrastructure.