G.I. Joe: Retaliation

The attack was ordered by Zartan, who was impersonating the President of the United States. Zartan orchestrated the strike to eliminate the Joes because they were getting too close to discovering his deception and COBRA's true plans. Only Roadblock, Flint, and Lady Jaye survived the ambush.

Earlier in the film, Zartan secretly orders the Joes' mission while posing as POTUS, setting up their destruction.

Lady Jaye noticed subtle changes in the President's demeanor when reviewing old footage after Zartan announced COBRA would replace the Joes as the national defense force. She suspected something was wrong, infiltrated a fundraiser, and successfully stole a DNA sample from the President, confirming it was Zartan.

Zartan's announcement about replacing the Joes with COBRA raises Lady Jaye's suspicion about his true identity.

Project Zeus is COBRA's orbital kinetic bombardment system consisting of seven weapon platforms in space. Each can deliver a devastating kinetic strike capable of destroying entire cities. Zartan planned to use these weapons to force world compliance with COBRA's global control, demonstrating their power by destroying central London.

Cobra Commander was overseeing Project Zeus from the beginning, set to launch within 48 hours of his escape.

Storm Shadow betrays COBRA because Zartan murdered his uncle, the Hard Master, and framed Storm Shadow for the crime to infiltrate COBRA from within. Once proven innocent through the Arashikage steel test, Storm Shadow seeks revenge for his uncle's death and turns against COBRA, killing Zartan during the global summit.

Storm Shadow's initial suspicion that he was framed is confirmed when his sword fails the Arashikage steel test in Tokyo.

In Tokyo, Storm Shadow demonstrates his innocence by fighting with the sword used to kill his uncle. The Blind Master reveals that the weapon is not made of Arashikage steel, the renowned metal that cannot be duplicated. Since Storm Shadow only uses authentic Arashikage weapons, this proves someone else committed the murder and framed him.

The Blind Master sends Snake Eyes and Jinx to find Storm Shadow specifically to determine the truth about his uncle's death.

Zartan launched US nuclear warheads during the world summit, forcing other nations to comply with his demand for nuclear disarmament. After nations surrendered their arsenals, Zartan ordered the self-destruction of all nuclear weapons, leaving the world nuclear-free while COBRA retained Project Zeus as their sole weapon system.

Zartan's summit with world leaders was specifically called to discuss nuclear disarmament under threat of destruction.

Zartan framed Snake Eyes for the Pakistani President's assassination as part of his plan to discredit the Joes and consolidate power. Since Snake Eyes is a ninja operating in the shadows, he was the perfect scapegoat for the covert killing, allowing Zartan to accuse the surviving Joes of conspiracy and theft.

The real assassin was actually Zartan himself, orchestrating events from behind the presidential mask.

Roadblock confronted Firefly at COBRA's base during the climactic showdown. After an intense fight, Roadblock used a rocket launcher to destroy Firefly along with the orbital weapon system he was protecting, effectively dismantling COBRA's ability to carry out further strikes.

General Colton supplied Roadblock with heavy weapons specifically for this infiltration mission.

Arashikage steel is a legendary metal used by the ancient ninja clan, known for being impossible to replicate. The Blind Master uses this property to determine innocence, Storm Shadow's sword fails the test because it's made of ordinary steel, proving someone else killed the Hard Master and that Storm Shadow was framed by Zartan.

The Blind Master specifically mentions the Arashikage tradition when sending Snake Eyes and Jinx to find Storm Shadow.

Cobra Commander escapes during the chaos following Zartan's death and the battle between the Joes and COBRA forces. While the real President is rescued and Storm Shadow disappears after avenging his uncle, Cobra Commander successfully slips away, remaining at large despite COBRA's defeat.

Cobra Commander instructs Firefly to safeguard the launch apparatus while he attempts to activate remaining Zeus weapons.