Operation: Firestorm was the mission that took place in Egypt to destroy the Decepticons' Harvester and revive Optimus Prime using the Matrix of Leadership. The participants in the battle were the Autobots, Decepticons and the military (who were on the Autobots' side). In the end, Optimus was brought back to life, and was upgraded with a jetpack when Jetfire committed suicide to lend Optimus his armor. This allowed him to destroy the Harvester, The Fallen, and also, injure Megatron.