Perhaps the theme is centered around time as a precious commodity. In the short story, the characters might be living in a world where time seems abundant at first. But as the plot unfolds, they face situations that show them that time is finite and should be used wisely. It could be about how people waste time on trivial things and then regret it when they find out that time is slipping away faster than they thought.
Another possible theme could be the power of perception. How one perceives things can create 'all the difference in the world'. In the story, characters might view situations differently, and this variance in perception drives the plot and the overall message of the story.
The main theme could be about seizing opportunities. In many short stories, the concept of a 'luckiest time' often revolves around characters being in the right place at the right time and making the most of it.
I'm not sure specifically as I haven't read this novel. But it could potentially be about seizing the moment, or perhaps the concept of time and how it affects the characters' lives.
I'm not sure without reading the story, but it could be an ordinary person who suddenly discovers they have all the time in the world and has to deal with this new reality.
In the short story, the theme could be shown by the way characters' actions are limited or enabled by time. Maybe a character has to wait for a certain period before they can take action, and during that waiting time, their emotions and thoughts develop. This shows how 'it's all a matter of time' as their future actions are dependent on the time that has passed and the time that is yet to pass.
The main theme could be about hope. In many short stories with a title like this, the character often faces difficult odds but still has a glimmer of hope, which might be the central idea.
I think the main theme of the story might center around personal growth and resilience. It could show how a character overcomes challenges and seizes an unexpected opportunity to change their life for the better.
I think the main theme of 'To End All Wars' short story is the search for a lasting solution to war. It might look at different historical attempts to end wars and the challenges faced. It could also be about the moral and ethical aspects of war, like the justness of certain wars and the consequences of engaging in warfare. It may even show the power of unity among different groups in the face of war, and how that unity can be harnessed to end all wars.
One possible main theme could be the passage of time. Since it all happens in a single day, it shows how much can occur within a short period.
Another possible theme is the relationship between humans and nature. The presence of the horses shows a connection between the characters and the natural world. It could explore how humans rely on nature, interact with it, and sometimes take it for granted.