The Japanese invaded, their lives were devastated, and the people were in dire straits! There was a group of people who used their loyalty and blood to stand in front of the Japanese invaders! They were... Defenders! What are the defenders defending? It is the continuation of the nation, the country The rise and fall of the people brought hope to the common people! It was the warm eyes of the mother when she saw the child! The mercenary spearman who was code-named writer returned to the anti-Japanese battlefield. He started to develop military industry with various materials brought in his mind. With the help of the rabbits, a military industrial system has grown from scratch in the depths of the Taihang Mountains. Grenades, mines, directional mines, rifles, semi-automatic rifles, light machine guns