The idiocy is abundant in this thread.
Historically speaking, vast majority of people living through past wars NEVER fought for their countries.
Conscription was a relatively new and rarely used tool. Taking peasants off the fields, miners out of mines, blacksmiths away from their furnaces would guarantee economic collapse.
For much recent history, most of the fighting was typically done by professional soldiers or warrior casts. Only small percentages of a population has ever actively engaged in prolonged warfare.
Mass mobilization and conscription only made possible by industrialization and strong states.
People didn't spontaneously organized themselves into armies. They typically are organized by a state which provides the infrastructure that ranges from logistics to communication, overall strategy, command and control etc.
Even in the examples used by some numbnuts above with Finland standing up to the USSR, they ignore the fact the the Finish state actually made all that possible by organizing the population in a fighting force.
Will to fight alone is insufficient. Simply it doesn't work like that.
In Syria such structures are only provided by organizations like ISIS, Al Nusra or Assad. Most refugees are fleeing all this madness.