If you want to include US proxies, why do you choose to ignore Iran's state sponsored terrorism? Or do you just lump all the terrorism stuff into 1 so the count remains low?
If you want to go down that route, the US government has sponsored plenty of terrorism by proxy in the ME. US ally Saudi Arabia has been spreading Wahhabist terror for decades, most recently in Yemen. The US is currently supporting a variety of jihadist terrorist groups in their attempt to depose Assad in Syria. US backed dictators in Egypt and Iraq (including Saddam) have terrorized their respective countries and neighbors.