<p>For what it is worth, a year or so I typed up the following list of Army branches:</p>
<p>Combat Arms:
- Infantry
- Armor
- Field Artillery
- Air Defense Artillery
- Aviation
- Corps of Engineers</p>
<p>Combat Support:
- Signal Corps
- Military Police
- Military Intelligence
- Chemical Corps
- Civil Affairs</p>
<p>Sustainment:
- Transportation Corps
- Ordnance Corps
- Quartermaster Corps
- Finance Corps
- Adjutant General Corps</p>
<p>JAG is not listed, and neither is Medical. Maybe that is because they are rather small branches, and require so much additional professional training.</p>
<p>Anyhow, I thought you might want to look at the list.</p>