Single Parents are not allowed to enlist in the US Military, period. Except for the Army National Guard, waiver approvals are very, very, very rare, and most recruiters won't even submit one. In the "old days," some recruits would try to get around this restriction by giving up legal custody of their child(ren) until after basic training and job school, but the military has wised up to this practice.
You can join the reserves or NG if you have a valid family care plan.
You can join the reserves or NG if you have a valid family care plan.