No doubt that that is very true. Winners write history or so they say.
I have never understood USA, British or Australian foreign policy, (same could apply to the European powers and Russia). You supply arms and all sorts of sophisticated weaponry to rogue Nations or Rebels, in order to gain some sort of control and influence. when it all goes to shite, then send in your own troops to kill the same people you armed in the first place. At the same time, you are still supplying them weapons!
I know it is nonsense, but why the fark, can't we just go to war against the people who make all the weapons and stop the industry. IS would find it much tougher if they only had rocks and clubs.
Not sure any Government is serious about stopping conflicts.