There are steps that you can take to end the relationship.
Because of your daughters age, you still have some form of parental control over what she does and who she see's.
You need to be aware of these regulations before you find yourself in a situation.
If you would like to learn more about military dating rules and how they apply in your situation, you can ask a Military lawyer to evaluate your case particulars and provide legal insight.
(4) Are, or are perceived to be, exploitative or coercive in nature.
(5) Create an actual or clearly predictable adverse impact on discipline, authority, morale, or the ability of the command to accomplish its mission.” You can contact NCIS or you can go to the command.
However, the UCMJ will charge the soldier if the involvement begins to interfere with the soldier's performance or if the relationship brings discredit to the service. (2) Cause actual or perceived partiality or unfairness.
If the soldier's relationship doesn't affect the routine and doesn't bring negative attention to the military, usually, no action will be taken. (3) Involve, or appear to involve, the improper use of rank or position for personal gain.
The most important issue right now would be your safety.
Your boyfriends CO can also issue an MPO which should keep your boyfriend from having any form of contact with you.
You can refuse to let the sailor come to your house, forbid your daughter to see the sailor, or make his visits to your home very uncomfortable.