Willy Pete has been used by the US is Iraq and other places. One of the big reasons it was used.is that that in cities the trend is to cover roads with fabric. Of course, you can’t see movement on those roads , so willy Pete, white phosphorus, is used to clear the fabric. Don’t know why Russia uses it in Ukraine.
There is nothing we can do, except social pressure.
I wonder howmuch effect you think you have on a full blown war.
There is nothing that will be done. Until everyone has had their fill of violence.