Here's part of the problem. I served 23 years and retired in 2001. I saw combat in Granada, Desert Storm and Bosnia, was involved in Covert ops in Central American from 83 to 85, and had two friends killed in Terrorist attacks in Turkey in 1991. In those years, the services had no real procedures in place for PTSD. After I returned from Bosnia and and was due a physical, I told the doc I was having palpitations. They ran an EKG, said I was fine and sent me home. (I was also having suicidal ideation, disturbing flashbacks and nightmares, but I just sucked it up and did like everyone else... self-medicated with alcohol. After retiring, the VA gave me 30% disability for bad knees and a back injury.
After 5 years passed and in 2007 I went to the VA to get checked out for dizziness and palpitations that were becoming so intolerable I couldn't work. My heart checked out okay and I was referred to mental health. After an evaluation, I was diagnosed with PTSD, and the doctor told me the VA was beginning to see a lot of service members who went their entire careers through the 80ws and 90s not knowing they had PTSD symptoms. After retiring, I was in fact having trouble with depression, suicidal ideation, nightmares, and avoidance from socializing. I've been in monthly treatment for 8 years and it appears I will be dealing with this for the rest of my life. Had they caught this when I was younger they tell me, I would have this all behind me by now. Instead, I continued going into harm's way and experienced a "piling-on" effect.
My point being that we have been seeing the high rise in suicides among vets in my age group because there was no PTSD treatment for active duty vets when we were AD. Yes, the VA began "trying" to help Nam vets in the 80s due to public outcry, but as for active duty... the services had no programs in place at all. From 1995-97 there was a spike in the active duty suicide rate (as a result of PTSD among the active duty), but because congress had slashed DoD Cold War funding, it was whitewashed. It wasn't until 2000 that military watchdog groups had exposed the 90s AD suicide rates, but that news was quickly overshadowed by 9/11. So to answer your question, yes - there's a chance of increased risk, unless PTSD is addressed among AD military members as soon symptoms appear while they are young. However, now that all branches have mental health programs to address PTSD among AD, the belief is that young men and women will be able to put the trauma behind them and get on with living (instead on just self-medicating to hide like I tried to do).