The Battle of Hoth was a major victory for the Galactic Empire and the single worst battlefield defeat suffered by the Alliance to Restore the Republic during the Galactic Civil War. The battle was an Imperial invasion aimed at destroying the Rebel Alliance's Echo Base hidden on the remote ice world Hoth.
The Imperial attack force consisted of primarily AT-AT walkers, commanded by Major General Maximilian Veers. His army was tasked with destroying Echo Base's main power generator to allow orbital bombardment of the planet. Spearheading the defense of the generator was the elite Rogue Squadron, manning snowspeeders, commanded by Luke Skywalker.
This was a practice game. We had to learn how to operate and use the many different vehicles in the game which was a bit challenging at first. A lot of rule reading, not much playing. So it was a practice skirmish. Using that AT-AT was a lot of fun however.