What are some interesting themes in 'old man's war universe short stories'?

John Perry is a main character. He is an old man who signs up for the Colonial Defense Forces. There are also other old people like him who become soldiers in the stories.

One main theme could be survival. In war, characters often have to fight to stay alive.

Another theme is mortality. Since old men are closer to the end of their lives, stories about them can explore the idea of death, like how they face it or what they leave behind. In 'The Old Man and the Sea', the old man's struggle can be seen as a fight against his own mortality in a way.

The old man could tell stories of the places he fought in. He might describe the landscapes that were forever changed by the war. Also, he could talk about the local people he met in those war - torn areas and how they coped.

One interesting theme is the exploration of the future. It often shows how technology might change society in unexpected ways. For example, in some stories, there are advanced forms of communication and transportation that have a big impact on how people interact.

I think community can be a theme. Maybe the 'green man' is part of a community or his existence affects a community in the stories. And there might be a theme of discovery. The characters in the stories could be on a journey of discovery, whether it's about the 'green man' himself or some hidden truth in their world.

One common theme is wisdom. Old men in stories often represent a source of knowledge and experience that younger characters lack. For example, in many folktales, the old man imparts valuable life lessons.

There is also 'The Ghost Brigades' which is related to the 'old man's war' series. It delves deeper into the military and ethical aspects of the universe created in the 'old man's war' concept. It has engaging characters and a lot of action scenes that keep the reader hooked.

One man of war story could be about a heroic captain who led his crew through a violent storm. Despite the ship being battered, he managed to keep everyone alive and the ship afloat. His leadership and the crew's unity were crucial in that situation.

One interesting old man story could be about an old fisherman who goes out to sea every day. Despite the hardships and often coming back with little catch, he never gives up. His perseverance is inspiring.