Power and control could also be a theme. The theory of war in the novel might discuss how different entities seek power through war, whether it's nations, groups, or individuals. It could show how the struggle for power during war affects the course of the conflict and the lives of those involved, and perhaps also question the morality of such power - seeking behavior in the context of war.
One possible theme could be the futility of war. The novel might show through its story how war often leads to destruction and loss without achieving much in the long run.
Power. A war lord is likely to be all about power, whether it's political, military or social power within the context of the story.
The novel 'A Theory of War' likely presents a comprehensive look at war, covering various aspects such as the political motivations behind it, the impact on cultures, and perhaps offering insights into ways to prevent or manage conflicts.
Survival is likely to be a theme. In a war setting, characters are constantly faced with life - threatening situations and have to find ways to stay alive, both physically and mentally.
In a 'sky war god novel', there could be themes related to the origin and purpose of the god. It might explore where the sky war god came from and what his ultimate goal is. There could also be themes of sacrifice, as the battles in the sky might require characters to sacrifice themselves for a greater cause. The theme of fate could also play a role, as the god and the characters might be bound by a certain fate that they are either trying to fulfill or break free from.
I'm not entirely sure what 'a theory of war a novel' specifically means. It could potentially be about a theory related to war presented in the form of a novel. Maybe it's a work that explores military strategies, the causes and effects of war, or the human experience during war through the medium of a fictional story.
Another theme could be the struggle between good and evil. The league representing the good side fighting against the monsters which could symbolize evil. Also, themes of sacrifice might be present as the characters in the league may have to give up things to win the war.
One possible theme could be the process of rebuilding. After a war, characters might be focused on restoring their lives, communities, and relationships. Another theme could be the psychological impact of war. The novel may explore how the characters deal with trauma, loss, and post - war stress. Also, it could touch on the idea of change. War often brings about significant social and cultural changes, and the story might show how the characters adapt to these new circumstances.
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.
One possible theme is sacrifice. Canadian soldiers likely had to sacrifice a lot, leaving their families behind and risking their lives in battle.
Survival. Since it's a war situation in 'The 100', survival is likely a major theme. Characters will be fighting for their lives and trying to meet their basic needs like food, water, and safety.