Energy Shielding is one of the most important developments in infantry protection systems in the history of the UNSC since the beginning of its exoskeletal power armour development (Producing the MJOLNIR armour, Cyclops suit, the Wolf ATAAS and Dragon MAW to name a few). The UNSC's system was original developed from captured examples of the Shield Gauntlet, while Covenant and Plainsfierian systems were developed from Forerunner devices, while Machina and Vorenus systems were developed independently.