“General Kenobi years ago you helped my father in the Clone Wars. Now he begs you to help him in his struggle against the Empire. I regret that I am unable to present my father’s request to you in person, but my ship has fallen under attack, and I’m afraid my mission to take you to Alderaan has failed. I’ve placed information vital to the survival of the Rebellion into the memory systems of this Artoo unit. My father will know how to retrieve them. You must see this droid safely delivered to him on Alderaan. This is our most desperate hour. Help me, Obi-Wan Kenobi. You’re my only hope.”

War on poverty.
War on cancer.
War on illiteracy.
War on pollution.
War on junk food.
War on stress.
War on gangs.
War on fraud.
War on drugs.
War on AIDS.
War on anxiety.
War on unemployment.
War on fat.
War on inflation.
War on tobacco.
War on depression.
War on guns.
War on terror.
.
equals
.
War on liberty.

This fellow explains it quite well:

Here is the solution:
(From LewRockwell.com)