WITH ARMY and Marine Corps suicide rates climbing dramatically, surpassing even those killed in Iraq and Afghanistan last month, the nation is increasingly disturbed and demanding treatment for veterans. But these suicide reports highlight an important distinction: A significant portion of those returning from war are not yet veterans; they are still active or reserve service members, which means, above all, that they probably will be going back to one of our theaters of operations. And that means that any treatment for post-traumatic stress will be positioned in direct conflict with the mission itself. As a former Marine captain and rifle company commander, I witnessed this conflict firsthand.