The hellbound martyr

A martyr is someone who fights for a cause and ultimately sacrifices his life for it. Ideally, an evil cause wouldn't have a driving force enough to warrant a sacrifice, so it is established that the cause ought to be a good one. But then I wonder if fighting and murdering people for the cause of restoration of democracy in their own country is a cause good or evil? There are few things encapsulated by an aura of such uncertainty as the fate of the american troops fighting in Afghanistan, Iraq and so on and so forth. It's one thing to kill and die with the perspective that what you are doing is good and you'd be rewarded with a place in the paradise as is the case with the suicide bombers, and another to kill and die with no sense of perspectives at all. They are martyrs indeed, by the very definition of the word, they fight on behalf of their country and die, a good cause undoubtedly, but what their country is making them die for is evil. That's brainwashing too, as severe as that of the suicide bombers and perhaps even more, but at least it entitles them to a feeling of sympathy unlike the so-called terrorists.