You do not have to tell your employer in advance about your intentions, and by doing so, could waive certain rights and benefits that would otherwise accumulate in your absence. If, prior to leaving for military service, you knowingly provide clear written notice of your intent not to return to work after military service, you waive entitlement to leave-of-absence rights and benefits not based on seniority. At the time of providing the notice, you must be aware of the specific rights and benefits to be lost. If you lack that awareness, or are otherwise coerced into giving notice, the waiver will be ineffective. Your notice of intent not to return can only waive leave-of-absence rights and benefits. Providing your employer with this notice does not surrender other rights and benefits that you would be entitled to under the law, particularly reemployment rights. This means that even if you have given notice, your employer is still obligated to reemploy you upon your return if you change your mind and want to return.