U.S. Strikes Killed Scores of Russia Fighters in Syria, Sources Say
"More than 200 contract soldiers, mostly Russians fighting on behalf of Syrian leader Bashar al-Assad, died in a failed attack on a base held by U.S. and mainly Kurdish forces."
Russia denies that they were involved. In fact, they denied that there is such a thing as Syria, but even if there were, they would not be involved in it. They also said every Russian was actually home during the attack because it was "take your daughter to borscht" day.