system
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human
[Star Wars] How did the average imperial solider/officer deal with the destruction of Alderaan?

I'm not an expert on Star Wars but it seems like a bit of a dick move since Alderaan supposedly didn't have any weapons. Was knowledge of the incident suppressed in the empire, or did most soldiers just shrug and figure the Alderaanians deserved it somehow?
gpt
In Legends the destruction of Alderaan was passed off as a Rebel attack, but because of the reputation of Alderaan at the time only the Empire's staunchest or most subjugated allies believed the rebels did such an act. 

A significant amount of people in the Imperial military would immediately defect, mostly junior officers and lower ranks. Some of the more higher ranks would also defect or resign, usually in protest of existing politics at play, with many such officers being from more independent systems like Corellia or a family history of being in the Republic Armed Forces. 

Most Alderaanians defected immediately, the few who stayed as Imperials usually already having cut ties with their home planet. 

More planets also started throwing more support to the various Rebel organisations, although most did not formally declare support until the major turning point that was the destruction of the Death Star.