The children realize that their latest fight is no where on Earth, at least, not the one they know. The awful truth behind the game comes out.
The enemy's weak point, 
aka the cockpit...
...نقطة ضعف العدو، أو بالأحرى قمرة القيادة
Den Schwachpunkt des Gegners,
En pratique, le point vital
de l’ennemi est le cockpit,