Answer:
I'm going to go with Mulan-simplistic yet with depth
1.She defies the state to fight for China being a woman, standing up to centuries of stereotypes and refuses to follow them due to her inner personality and urge to save her father.
2.The character is different because a)she is a woman among an entirely male army and b)she believes her value isnt simply to make a good match and bear sons
In her place I probably wont have dressed up as a man, gone into an all-male environment, as in my country this may lead to dire consequences such as harrasment if discovered. However to save my father I would have laid on the guilt pretty thickly onto the authorities to weasel him out of the war.