Not just the USAF.
The US Navy is involved,but at a smaller level.
My niece married her high school boyfriend,who enlisted in the Navy after graduation. He had linguistic ability,so the Navy sent him to language schools to learn Muddle Eastern languages.
He is less than 2 years from retirement now,a E-8,and has never had a Navy assignment. He has been attached to various Army units his whole career.
BTW,I have to give "props" to the Navy for promoting him even though he wasn't working with the Navy. The Army generally treated people serving cross-service duty as red-headed stepchildren,and they rarely got promoted.