The U.S. Public Health Service is a "uniformed service", but it is not part of the United States Armed Forces (the "military"). The Armed Forces consist of the Army, Navy, Air Force, Marine Corps, Coast Guard, and Space Force.
https://www.law.cornell.edu/uscode/text/10/101#a_5
https://www.irs.gov/individuals/military/eligibility-for-military-tax-benefits#:~:text=Uniformed%20S...
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
