G.I. Joe: A Real American Hero #175

As Snake-Eyes, Storm Shadow, and the Russian Arashikage ninja leader square off vs. a robot inside one of the Blue Ninjas' tech facilities, hoping to gain info on where the Blue Ninjas are, Cobra begins their quest of vengeance as they appear after the battle's won by our heroes after gaining info on the tech facility. Meanwhile, the Baroness leaves Castle Destro, obviously in pursuit as well of the same ninjas that killed Billy, and at the PIT III, Scarlett is alerted to this by the other Joes there.