American Servicemembers volunteer to put themselves in harms way, sometimes for multiple deployments. When an accidental civilian death occurs as a result of the asymmetric nature of modern warfare, the US Government looks for someone to hold accountable. This is when US Servicemembers are offered as a sacrifice to host nation governments. There must be something done to prevent this in the future.
9/11 showed us what happens to our country when we don't go on the offense. It is imperitive that the United States have a strong and capable military. We can't have that strong military without strong leaders within the military who are willing to do what it takes to protect their men.
He gave an order to protect his men during a deployment in a time of war and is being punished.