It depends on who ya ask, Tex. Each branch's history and lineage go into the different uniforms, and although they have changed over the years, they are designed to make a Soldier distinguishable from a Sailor. There are also different demands placed on the uniforms. Army and Marine uniforms have to stand up to mud, blood, shrapnel, etc., while an Airforce uniform must withstand repeated starch and ironing. (sorry, I couldn't resist):biggrin: I'd also be willing to bet that each branch is allocated a budget for uniform design and the associated R&D.