Hi Miriam88:
Sounds like you are in a tough situation. I can hear that you want to help fix your husband and want the best for him. Reality is that the only person you can manage/fix is yourself.
If you Google "mental health issues with military personnel", you will find that those who are honest about past mental health issues, won't make it into the military. Also, mental fitness is a requirement to stay in the military.
I view mental health issues with those in the military as two categories:
1. Those who have anxiety, depression or PTSD as a result of a tour of duty and combat situations.
2. Those who have preexisting mental health issues, and were able to hide them during early evaluations and during some part of their service.
It seems that the lack of confidentiality in military behavioral health clinics is a real impediment to his ability to work through what he calls his "demons"
I know that some people with mental health issues slip by and get into military service, but they shouldn't be there. They might keep their "demons" hidden for a period of time, but they will generally show up at some point.
Someone with emotional dysregulation shouldn't be involved with working with weapons. If he isn't someone who is deployed, and isn't involved with weapons and explosives at all, then perhaps it's not as alarming. Difficult people get away with a lot of bad behaviors in private industry, but that isn't generally the case in a disciplined military environment. Everyone is expected to take orders and be a team player.
In some ways, you could compare enlisted military personnel with someone employed with a police department. The employer needs to know that an employee has serious mental health issues. The employees with "demons" are the ones apt to use excess force and do something impulsive, when their emotions are out of control.
Anyway, this is just one opinion. If your husband worked a routine job (not military), I'd support mental health confidentiality; but, he is in a high-risk environment. If he isn't mentally fit for service, he may need to take some sort of leave or get a discharge. I believe mental stability is a requirement for continuing service. His "demons" will be hard to hide.