This is the way I look at it -
There are people who spent years from home, have malaria, lost limbs, eyesight or even their life. They are decorated with awards for their actions, participation or just the hardship and sacrifice they endured or gave for the cause. People who want lie about this and pretend to be something they are not, that's just not cool in my book.
I'm not saying to lock this guy up. But exposing frauds is OK.