Now, I'm asking this because I am confused. My gut-instinct says to fight, because a life of slavery is no life at all. Of course, gut instinct is a lousy moral compass, however, utilitarian principles would say to collaborate: you will spare the lives of hostages, your family will survive, in exchange you may need to condemn a resistance fighter to torture and death from time to time, so the overall balance of suffering seems to come out ahead.Assume you are living in a country which fell prey to a brutal occupier. The occupier is opressive and has stated, several times, his intent to completely annihilate the population of the conquered nation. The actual process, however, won't start until five years into the occupation.
The only ones who will be spared are those who collaborate fully and without question with the occupier, to the point of ratting out resistance fighters, joining the occupier's armed forces, etc.
Everyone else will die. Any resistance will invite vengeance in the form of mass executions for every dead occupier.
There is also little to no hope of an outside force coming in to liberate your country from occupation. On the other hand ,you personally have access to resources that will allow you to organize a resistance cell (say, a dozen people) capable of fighting the occupier for some time.
Given the above situation, what is the more moral course of action: do you collaborate and have your family survive the upcoming holocaust, but sentencing them to a life of slavery? Or do you fight, inviting retribution on your countrymen?
Remember that fighting the occupier will mean almost certain death for you, and the deaths of thousands of hostages.
Or perhaps I am mistaken, and I'm drawing wrong conclusions from a utilitarian viewpoint? Perhaps it is best to remain neutral and accept the death of yourself and your family along with everyone else who refuses to collaborate.
If you want to drill this further, consider the following:
1. The situation is as above, except now there is a high chance of a foreign nation coming to liberate you. Everything else will remain the same, including excessive retribution for resisting. It will take a minimum of five years for this to happen, though.
2. The situation is as above, but collaboration does not guarantee survival: assume the odds are 50/50 that you will get killed by the resistance instead.