I’m just curious where you entered into each country. If you speak Turkish, you can get around in the north/ NW of each. About the same if you speak Arabic or Kurdish. If you speak none of those, then hats off to you for getting in and out without getting snatched up, especially in Syria just a year ago. Or you could be Russian, but your use of English articles is too accurate for that.
A coworker with US/ Israeli citizenship had to cross by vehicle from Jordan into Israel, since he had Iraqi stamps in his passport. He was given a temporary paper visa at that border. Even if you went that route from Turkey to Syria and Iran, you’re still going to have to give lots of details about your time in Turkey. Pretty sure any other country around Syria and Turkey requires a visa for US citizens.
I mean, you were already denied a Public Trust, so why not just lay out all the details.
Or roll the dice and try to hide those trips. I used to work in a federal penitentiary. If you’re of Muslim heritage, you’ll be fine. If not, you’l have to clique up, ‘put in work’ for credibility, etc. Might as well start doing burpees now, just in case.