Maybe Alexander Haig ?
I don’t think it’s Haig. The more I look at the face the more familiar it becomes to me. I would say likely another Congress critter from the class of 1983, which is the 98th USC.
After checking on Rumsfeld, I found out that he was in the private sector from 1977 - 2001. He might have been representing some major corporation looking to do business in Iraq in 1983.
The mystery man could be a US Gov employee, or a private business man like Rumsfeld. I’m not sure I want to do anymore research since it is already a bit of a slide, seeing how it’s obviously not CJ Roberts.
Maybe a US ambassador?