The second season of Strike Witches. Set in a world similar to Earth in the mid twentieth century, Strike Witches tells the story of a fight to protect that world using a combination of magic and technology. The titular Strike Witches are young women with high magical potential who are recruited into militaries around the world to fight against the enigmatic Neuroi, which began an invasion of unprecedented scale on human territory in the year 1939. This puzzling enemy force has appeared frequently and without warning in many areas across the world throughout history. The weapons of the Neuroi mostly take on forms similar to aircraft, but their most troubling tactic is the spreading of a corrosive miasma. Not only do normal humans have no defense against this miasma, but the remnants of the land affected by it are processed by the Neuroi into new weapons, crumbling huge sections of former nations into the sea. As the miasma seems to be unable to spread across large bodies of water, humanity has designated such areas as their main lines of defense