the tonal center is F, but overall I would consider the work strongly modal and freely tonal. The beginning of the last section has a tonal center of G (and imho is my favorite part of the work), but it goes back to F modal for the end.
What a tortured mess of sonic materiel. Army band should stick to Sousa marches. This sounds like something a cat dragged in...Shrodingers cat. 1 star for Alessies eyebrows.