The main character, a young woman named Lena, discovers that the weapon system is not just a tool for destruction but also a means to unite people in a world torn apart by war. The plot of the book "Iron Cross №20" revolves around the development and use of a powerful weapon system that has the potential to change the course of history. The story takes place in a dystopian future where the world is torn apart by war and conflict, and the weapon system, known as "Project Elysium is seen as a way to bring about a new era of peace and unity. However, as the story progresses, it becomes clear that the true power of Project Elysium lies not in its destructive capabilities, but in its ability to unite people across borders and cultures. Lena, the protagonist of the story, is a brilliant scientist who is recruited to work on Project Elysium.

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