Also, what do you mean by this?? Even before the destruction of Alderaan?? Other planets were destroyed by the death star?? If you mean planets that opposed them, then I guess you are talking about rebels, and rebels are commiting treason against the state. I suppose the U.S and 99.9% of world government are evil by that line of reasoning.
What do U mean by "forceful and violent subjugation" of those planets, and define "opposed them". Please give examples of this...
the forceful and violent subjugation of any planet that opposed them in order to make an example of them for other star systems. This is all before the Death Star blew up Alderaan.