Another theme could be the futility of war. Maybe through his experiences, he witnessed a lot of destruction and death that made him realize how pointless war can be. He could have seen how lives were wasted and how little was actually achieved through the fighting. This might be a central theme in his story. Also, the theme of camaraderie could be present. If he was part of a military unit, the relationships with his comrades, the support they gave each other, and the bonds formed during the difficult times of war would be an important part of his story.
One possible theme could be courage. If he was in a combat situation, he might have had to show great courage in the face of the enemy.
I'm not sure specifically which Mikael Levin's war story you are referring to. There could be many people named Mikael Levin. If you can provide more details like which war it was related to, it would be easier to tell the story.
One possible theme could be family. Christmas is often a time when families come together, and the story might explore the relationships within a family during this holiday.
It could be that Mikael has some sort of power or knowledge that Bella doesn't want him to use. If he's planning something evil or dangerous in the context of the fanfiction, Bella might decide to eliminate him to prevent chaos or harm. For example, if he's about to release a powerful dark force that would destroy both her world and the world he comes from. Another possibility is that Bella has been manipulated into believing that Mikael is a greater evil than he actually is, perhaps by an antagonist who wants Mikael out of the way for their own reasons.
One possible theme could be survival. If nordly was in a war, the basic instinct to stay alive in the face of danger would be a significant part of the story.
Since I have no knowledge of Levin Gaye's story, it's impossible to determine its significance. It could be a story that has to do with his achievements, his relationships, or his experiences, but without more details, we can't know.
One common theme is the idea of redemption. Mikael, who might be seen as a villain in some original stories, often gets a chance at redemption through his relationship with Bella. Another theme is the discovery of new powers or abilities. They might discover something unique about themselves when they are together.
The story might include the campus culture. Maybe there are some unique traditions that students and faculty follow at the fred levin law school.
One possible theme could be survival. War is a dangerous environment, and his story might revolve around how he managed to stay alive through various battles and hardships.
One possible theme could be courage. Facing the dangers of war requires a great deal of it.
Power is likely to be a theme. In an internal war, different sides often fight for control and dominance. It could be within a small community where some people want to be in charge and impose their rules. There could also be the theme of loyalty. As the war within unfolds, characters will have to decide where their loyalties lie, whether it's with their family, friends, or a particular cause. This can create a lot of tension and drama as loyalties are tested and sometimes broken.