In 1943, the Japanese invasion of China was forced to turn defensive on the surface due to the impact of the Pacific War, but in reality, they secretly planned the Battle of Changde and launched a large-scale offensive, planting spies in the national army and secretly transporting a batch of latest research materialsThe chemical weapons of mass destruction produced by the Japanese army are stored in top secret bases Liu Yuanqian, Deputy Commander of the Independent Regiment of Hutoushan in the Eighth Route Army, caught a spy and prevented the Japanese from detonating chemical weapons...