The Allied Shinobi Forces were a union formed between the five great Shinobi nations and one samurai clan to stand united against the Akatsuki in the looming 4th Shinobi World War in Naruto World. Realizing the immense threat posed by Akatsuki's plan to extract the tailed beasts, the leaders of the lands came together at a Kage summit. After Tobi declared war on the nations for refusing to hand over the jinchūriki Naruto Uzumaki and Killer B, the shinobi forces joined as one to defend themselves.