Indeed, the project is going to be validated. Soldiers who underwent the tests before being deployed are also going to take the tests upon returning from their mission. It is a matter of assessing the efficiency of the measures, which are meant to be preventive.
We are talking about stress, but as has been raised by chaplains, there's also a component regarding the combatant and death. We talk about death, and the link between armed combat and death, which is a possibility. We lead the soldier into thinking about the meaning attached to the mission. He will be making more money, of course, and that's nice, but given the context in which he is being deployed, he must be asking himself questions that go above and beyond that fact.