JustOK writes "Darth Vader did a lot of bad things and did a lot of things badly; the Battle of Hoth was of both types. The Empire's attempt to capture Echo Base, while successful, was still a horrible failure. Sure, the Empire overran the ground defenses and captured the base, but most of the Rebels escaped. Luke, Leia and Han all got away. The Rebels had a poorly-laid-out ground defense, and a planetary shield that can't keep an invader out while complicating their own escape. This article at Wired takes us through all the missteps in the battle."