You take your reserve units that are fairly well intact, well equipped with tanks and armored vehicles, take them out of the cover of well dug fortifications to a place far from your supply lines and no cover from cities and no fortifications, to fight an enemy that has overwhelming firepower asymmetry and glide bombs. In the meantime, your defense in the cities with fortifications dug over eight years are crumbling quickly right before your eyes. This short lived PR victory will be very costly.