That assumes that everyone is American. I’m not. Even if I were I did not commit war crimes, nor did most of the people who post on this forum.

So it is not true that it undermines “our” moral posture. That is just rethorical gymnastic.

I think the US militaries have insufficient controls to uncover and punish war crimes, and the “American Servicemembers Protection Act of 2002” is particularly disgracefull. I believe the US should do better.

That being said when Russian troops intentionally shell civilians that is a war crime.

I apologize if there wasn't enough context to understand that both I and the grandparent of the person I replied to are Americans. When I used "we" and not "the U.S." it was because I was specifically speaking as a U.S. citizen.

It also makes us more threatening which in turn is more likely to provoke a violent response to our mere presence.