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<p>You hit the nail on the head. Junior Officer. It would probably be the most exciting, challenging, and rewarding thing you could do as a JO. You are on the right track in being concerned about your career track as such. It could very possibly be detrimental to your career. </p>
<p>These special units can both stand-up and stand-down fairly easily based on necessity. This would probably place you back in the fleet unable to compete with your contemporaries. You would also have to forego valuable shore duty billets, necessary for subspecialties , in order to double up on operational billets required to remain competitive.</p>