In my experience, the Navy was the most honest and often would provide options within its own means for addressing in-service issues. Air Force middle of the road, and the Army seemed to have a penchant for espousing ‘equal’ share of capital, notwithstanding well-regarded data that things that fly or sail are capital intensive. The irony being that the Army seemed less adept at the PY game after the Navy and Air Force endured years and years of purple “Jarmyoint” force build up (1 Cdn Div as “J”oint).
The Navy and Air Force matured their organizational make up years, even decades ago. Frankly, the Army is still out walking in a snow storm trying to figure out what it wants to be…heavy, mech, what about light, 9 BNs, 6+PRes?, symmetrical, asymmetrical, own AD or not, mortars, pioneers, combat sp pl, etc.?
YMMV