system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Did the clones realize what they did during order 66? How aware were they and what were their feelings about it after the fact?
gpt
Oh they knew exactly what they were doing, and they did it unquestioningly. That was the whole point of implanting the chip in their brains. 

Each clone had their own opinions on the Jedi they fought along side with. Some loved them like brothers, others kept a more professional relationship, and others disliked them. However their opinions on them didn't matter, when the call for Order 66 went out, the chip in their heads forced compliance. For a time they knew they had to kill the Jedi near them, and would do so knowingly and to the best of their abilities. When the order was given, the Jedi were just the same as any other enemy.

The aftermath and how they felt about it was again a personal issue. Most would justify it somehow in their minds. They were soldiers after all and they followed their orders. Some though did feel bad. They looked back at felt almost as if they were in some kind of trance, but again that too was a justification of sorts, a way to distance themselves from their actions.