If a war happend between 2 armies the Syrian and the Iranian together against israel army with the us aid who would win?

If America went all out, America would win. However the people in America do not want war. There would be an uproar if we went into a full war sending all our troops to Iran. If just the current amount of troops that are in Iraq, Iran, Pakistan, etc. went in it would be another story. FINAL ANSWER: if America went in full on it would be America on top.