Military duties affect mental health

It is widely known that those men and women who were once in the front have suffered from mental diseases, given that these people they do not really enjoy going to combat. They suffer from the pressure of their superiors, the act of taking the life of many innocents or not, the fact of being in charge of such responsibility of fighting for your country and freedom. These poor individuals experience the human misery all at once, which of course may affect on their mental health. I feel really pity for these people, who are not heroes of war since you can call someone hero for having killed someone (whoever he is) in the front. However, I think that since they were in warfare for a country, the government and their citizens should recognized their courage, giving them all the medical and financial support.