Vader Unleashed

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This is actually the Empire theme. The reason why I called it Vader Unleashed is because this reminds me of the power that Vader held over anybody who stood in his way. the director of episode V The Empire Strikes back mentioned that Vaders role in Empire was a lot more ruthless than his role in ANH. In Episode IV ANH there were governors who basically had control over the entire means of what the empire does, and Vader was the little lap dog that the governors could control. If you remember in the scene where all the governors are having a conference they all talk down to Vader, one even insults his religion (that is when Vader started to force choke him). Vader had no real control he took orders from Grand Moff Tarken (who told Vader to realease the other guy).
When the first Death Star was distroyed all of the governors were in it. Now there was nobody to stop Vader from doing what he did best, force choke people.
That is why in Episode V Vader was in command, he decided the fate of everybody and there wasn't anybody there to tell him otherwise (which leads to some of the greatest scenes in the Star Wars movies which was Vader killing off all the Admirals that he didn't like and then apointing new ones that would bite the dust as well if they made a mistake).
Therefore, Vader is unleashed.