Yes but...a very large fraction of US military expenditures are based less on the need for defense than on the "need" to keep defense contractors in business absent a realistic threat model. Thus those taxes essentially fund make-work jobs that keep people employed but the fruits of their labor often have more to do with defense theater than defense. The F35 comes to mind [0].

Note I didn't say the whole DoD budget is a waste, but a huge portion of it is only justified by politics cosplaying defense.

[0] https://en.m.wikipedia.org/wiki/Lockheed_Martin_F-35_Lightni...