Blizzard Force is a fictional military squadron in the Star Wars films. The 501st Legion "Vader's Fist", played a significant role in the battle as well as being part of the elite Blizzard Force Team. The legion was commanded by General Veers, which attacked Echo Base on Hoth. It consisted of nine AT-AT Walkers, including Blizzard 1, Blizzard 2, Blizzard 3, Blizzard 4, Blizzard 5, Blizzard 6, Blizzard 7, Blizzard 8 and Blizzard 9, including several AT-ST Walkers, Blizzard Scout 1, Blizzard Scout 2, Blizzard Scout 3 and Blizzard Scout 4. The entire Blizzard Force was deployed by three Y-85 Titan Droidships. Under the command of General Veers , Blizzard 1, succeeded in capturing Echo Base despite the loss of Blizzards 6, 8. A third walker was destroyed in a kamikaze attack by rebel pilots.

The snowspeeder squadron committed several tactical blunders by attacking the first five Blizzard walkers at close range, the walkers were armed with heavy laser turrets and some of them employed flak blasters for anti-aircraft tactics. The battle was fierce, adding a lot of casualties to the rebel infantry while the mechanized assault advanced very deeply through the rebel defenses. Soon after the Blizzard Force secured the frozen plains, the snowtrooper task force began deploying troops via airmobile tactics. Members of the 501st Legion were deployed directly from the fleet. They were involved in the destruction of the inner facilities of Echo Base. The rebels where easily overwhelmed by the Blizzard Force Team and the 501st Legion, some of them surrendered and where taken prisoners while others escaped or proudly fought to the death. The Battle of Hoth was a stunning victory for the Empire despite the minimum loss of infantry and vehicles. The Rebel Alliance took massive infantry losses during their escape and also while engaging the Blizzard Force Walkers.

The Rebel Alliance High Command was utterly defeated at the end of the Battle of Hoth in a single well-coordinated attack, but, it was able to evacuate most of its staff. The Blizzard Force occupied Hoth, for a time, while some Star Destroyers were deployed from the fleet to hunt down the Millennium Falcon and their crewmembers.