@takashichea: Since earth in this has one government an the Martians are a empire its nationalism or empire-ism. Um its a ism for sure. Their is a word for it but its escaping me atm. Searches the net for it... imperialism kinda works. But the Martian side see them selves as a " higher race" even tho they are humans to. Dam my 10th grade english usage! Nationalism would fit to.
I got what ya ment but can not find the right word for it atm.