This book revolves around the four-year campaign of a border regiment. It tells the story of Yang Xiao's team's growth, unity, and struggle in military camps, battlefields, and the alternation of peace and crisis in the troubled times of political turmoil, border crises, and armed conflicts. The four volumes respectively cover the ups and downs of the founding of the army, the first battle, turning defeat into victory, and the final defense. Through humorous dialogues, compact plots, and distinctive characters, they show the indomitable spirit of a group of ordinary soldiers in the torrent of war. Each volume unfolds independently while constantly advancing the main plot. Guard peace and self-growth.