Since it was in the Daily Buzz, a clip with AT-AT's...
Published on Apr 16, 2015
"Star Wars: The Empire Strikes Back" Clip - Imperial Walkers Attack on Hoth.
After the rebels have been brutally overpowered by the Empire on their newly established base, Luke Skywalker takes advanced Jedi training with Master Yoda, while his friends are pursued by Darth Vader as part of his plan to capture Luke.
License - Standard YouTube License