While yes it is the most used defense for a soldier in history I have to say. IF warning shots were fired and they continued to advance, I would have dropped one of them as well. I spent 18 months running convoy security in Iraq from BIAP to the Green Zone and we routinely fired warning shots and if they continued to advance, not yield, or any other action that was considered threatening we opened fire. Hind sight is always 20/20. If his commander issued those ROEs and he followed them to the letter, he is not to blame the commander is.
U.S. sanctions Russia's state-owned arms exporter Rosoboronexport (Reuters)