In our Civil Code, it is not required for both men and women to enter into a marriage contract before marriage, so generally marriage contracts are not legally binding. But the People's Army bears the glorious task of defending the motherland and defending against aggression. In order to prevent active duty soldiers from being affected by marriage issues and fulfilling their glorious duty of defending the motherland, special caution should be exercised in handling the engagement of active duty soldiers. Therefore, in order to terminate the engagement with active duty soldiers, it is necessary to obtain their consent through their unit.