Battle of Hoth

The Battle of Hoth was a battle on Hoth which started when an Imperial probe droid found a hidden Rebel base on the planet. During the battle the Empire killed many Rebels, and let many other Rebels escape.

The probe droid
The Darth Vader was to lazy to go look for the Rebels himself, so he sent thousands of probe droids to look for them. When one of those droids finally found a Rebel base on Hoth, Vader took a fleet and some stormtroopers to destroy the base.

Preparing for battle
Before the battle, Lord Vader chose two groups of stormtroopers to attack the base. The first group consisted of normal stormtroopers who were given big walker things to hide in and sticks. They threw the sticks at the weak Rebels, who then died. The second group was the surviving half of the 501st Legion (the other half was killed during the Battle of Yavin). The troopers of the 501st were given big walker things and small walker things, the 501st was also given blasters. The task of these two groups of stormtroopers was simple, they just had to kill all the Rebels.

However, the Rebels didn't want to get killed. So they sent half of their troops to defend the base and get killed while the other half escaped.

The battle
When the Empire attacked the base, the Rebels implemented their "defend and escape" tactic to make sure at least half of them survived. When Lord Vader noticed that only half of the Rebels were defending the base while the other half escaped, he sent the surviving half of the 501st to stop the escaping Rebels while the normal troopers kept killing the other Rebels by throwing sticks at them. This is when something really weird happened... The normal troopers succeeded in killing all the Rebels they were supposed to kill (although this was very amazing, it's not the weird thing), but the 501st failed to kill the escaping Rebels (That's the weird thing). When he learned about this, Lord Vader was furious, he could not believe the 501st had failed.

Aftermath
After the battle, Lord Vader counted all the dead Rebels in an attempt to prove the 501st was not stupid. But when he was done counting the dead Rebels, he found out that half of them had in fact escaped and that the 501st was really stupid. He punished the 501st by taking away some of their hot Twi'lek dancers.

The escaped Rebels later returned to Hoth to build a new hidden base there because they could not find another "cool" planet in the Galaxy that hadn't already been occupied by the Empire.