alt Hacker NewsOP's question was about how the current Russian invasion of Ukraine is different, not about some grand total score of infractions by major powers in 20th century. Overall I find this opinion of many western liberals that it is only fair for Russia to murder some Ukrainians, loot their homes and rape their women because US did some bad things before quite perplexing.
That wasn't my point. My specific argument is about US operational policy on the ground in similar engagements. Based on precident, we would expect them to engage in the behavior the commentor indicts.
I dream that neither of these imperial powers - Russia or the US - will be allowed to inflict imperial violence, but I wouldn't be mistaken and assume that this military action will be any different than, say, JSOC in Iraq.