I want to start by saying that I have never understood suicide and that I am not in the psychology profession.
My boss and I were talking about the suicide rates of people in our profession (construction) which by the way has the highest rate of suicide than any other profession, and it got me thinking.
I do believe, that as a society we push our kids to succeed, not to accept failure. From a very young age thru high school they are pushed to be the best in academics and athletics. Then we these young adults get to college many may experience failure for the first time, in school and maybe their personal lives, and many of them do not know how to handle it and cannot accept the fact that maybe they are failing school. Instead of disappointing someone they do consider suicide.
In my opinion the military is no different, and is also not the only place with a suicide issue. Young cadets/soldiers get into a time commitment that part way thru maybe they cannot bear. Maybe they just cannot succeed at what they are doing. Maybe they just get depressed from not being able to handle the pressure or isolation from their family or other family issues.
Depression and suicide is not just a military problem, it is a society problem. Mental health/depression issues are hard to identify and even harder to convince the people that have them they need help.
I do not know the numbers, but am guessing that suicide rates are rising because they are being reported more and that society is recognizing that it is a big issue. Also the fact that there are just more people in the world. Suicide used to be embarrassing to those around the person that committed it so it was never reported.
I am certainly not trying to diminish the issue of suicide in the military, however it is not just a military issue.