I really think we are going to cross a line at some point, Russia used cluster bombs early on and to wide condemnation, The problem with the west is we are not even joined up, we are fractured, while Russia is one country with one agenda and plan.
Unless the west can agree on a strategy that is effective but does not cross certain lines such as use of weapons that are indiscriminate, we are going to be remembered for that and only that.
Reminds me of 7 of 9 in star trek pointing out humans need to debate every issue, where as the borg just make a decision based on several options.