oh the USSR definitely was also involved. but again, you're just wrong and keep saying these broad sweeping statements for some reason.
every time you get into one of these discussions you'll say something blatantly false even if it has roots in truth but you overexaggerate that truth then we have to spend the next 10 posts bringing you back to reality. no, not every weapon that has killed a US soldier was made in iran or russia. you know that isn't true.
yes, iran and russia have supplied more arms to rebel and terror groups, numerically. israel still does it constantly though. if funding terror groups is really important to you, israel is basically #3 on that list of suppliers lol