https://usafacts.org/answers/how-much-does-the-us-spend-on-defense/country/united-states/ https://usafacts.org/answers/how-much-does-the-us-spend-on-d... 22%.

https://usafacts.org/answers/how-much-does-the-us-spend-on-defense/country/united-states/ https://usafacts.org/answers/how-much-does-the-us-spend-on-d... 22%. But operations also includes civilian salaries and procurement naturally includes the labor required to produce what was procured. I would assume that R&D also includes research grants and salaries.