
How shocking—these clinging effects of war.
In addition to soldier's physical problems either exacerbated or caused by war, emotional problems could also be brought on by battle. The First World War is often associated with the syndrome called shell shock. This was originally believed to have a physical origin, caused by loud shelling. However, soldiers who had never been exposed to shells were developing the same symptoms. During the horrendous Battle of the Somme in 1916, there was a severe increase in the number of cases.
During WW2 the problems was known as Combat Fatigue, now, it is called PTSD. Soldiers are trained that they must kill or be killed.

The figures, obtained under a Freedom of Information request, show 718 were discharged for depression, while 130 were suffering from alcohol-related behavioral disorders.
It's no surprise that, after the distress soldiers experience during war, they find it hard to be the same, emotionally, ever again.
Some veterans of past wars have recovered from their traumatic experience with the right care. But should we prepare troops for what is to come? How could we protect them from mental trauma before they are sent to fight, as opposed to treating their symptoms once the deep psychological damage has already been done?
If I had my way, there would be no more wars fought. Full stop. We shouldn't interfere in other country's fights. I know, it seems heartless to let dictators cause misery to the people. In a way, avoiding involvement is like watching a bully terrorize innocent people. The shocking example of Hitler comes to mind.
Should we just defend our own rights or should we help others if it means damaging our own personnel?