This isn't about us disagreeing, it's a matter of considering the reality and analyzing the choices with a risk-benefit method. We very much should learn from our actions. Look at Germany after WW2, there's wasn't another Hitler this time. If we are careful and show to the Russian people we actually want to help, then we act to improve life there and takes measures so a power vacuum doesn't happen. Yes, we have to consider what happened with appeasement right before WW2 and the failed policy in Iraq too. Peace talks were tried. They might work in the future, I realize that should be the first priority, BUT we must be so prepared for the worst because of who Putin is. If you don't mind me asking, are you an AI bot that replies to people or just use AI to come up with responses?