You don't deploy with the other two branches. In truth, the branches are expeditionary (Seabees, augments, etc), NAVFAC (Construction Management and Public Works), and special assignment (Admiral's aide, Camp David, State Department, etc). The NAVFAC jobs don't deploy - they are shore duty. You get stationed at a Naval installation for 2 or 3 years and work there. This installation can of course be overseas, in which case you will spend the said 2 or 3 years living overseas. Special assignments are, well, special - travel/deployment depends on the job and it's hard to generalize.