It is politically correct to say "wars suck", no doubt. When a blind eye is turned to the issues that cause small conflicts, then major and more costly conflicts occur. When the big boys on the block stay home and let the little guys duke it out, or let the little guys egg the houses the big boys live in and get away with it, it all leads to larger and worse things. Just look at history.
Each and every life lost, regardless of they are allied military, civilian, or even "baddies", are tragic. If we look at the cost in military personnel and resources, this conflicts in Iraq and Afghanistan are quite low compared to what they could have been if a blind eye would have been turned.
Best of luck to the marine and the his family. May God be with him and as he gets back to safety.