The Viper forces are the backbone of . Chosen for their independent thinking, initiative and daring, they are expected to carry the fight far inside GI Joe territory. They are equipped with armored climate-control suits that enable them to function efficiently in extreme environments, and they are given advanced training in deep battle tactics, survival procedures, and high-tech weapon-systems management. They are aggressive, yet wary; attentive to detail, yet practical; sneaky, yet trustworthy; ferocious in combat, yet willing to retreat tactically. This combination of traits makes them formidable foes, and the last thing that the GI Joe team wants to have sneaking up on them from their left flank.