Compared to AMD, Intel is distinctly a “US” corporation, outside of that image they have large R&D centre's in Israel.
US corporations that deal with the military very often have a similar setup.
Lots of talk about Intel running their own fabs is taken with a “National Security” mindset, and, isn't it the large “too big to fail” corporations that end up very close to government anyway, even if they are very removed from being the best? Oracle comes to mind.
If you asked someone not in tech "which one is american" out of AMD and Intel, they would say Intel; despite the "A" in AMD literally standing for "American"...
Consider that most people born outside of the USA are not eligible for military clearances despite being US Citizens
In this respect, the DoD would likely prefer the most “American” company possible, I.e with buy America provisions.