This essay provides a comprehensive analysis of the legality and consequences of the actions of Ufasia and the Federal States under international law, focusing on the principles of 'use of force,' 'state responsibility,' and 'reparation.' It examines the events, including Ufasia's declaration of a holy war, support for violent acts against the Federal States, and the subsequent bombing in Liguria, as well as the Federal States' retaliatory air strikes. The essay explores the relevant articles of the UN Charter, particularly Article 2(4) regarding the prohibition of the use of force, and Article 51 concerning self-defense. It delves into the Caroline formula, the concept of anticipatory self-defense, and the conditions for lawful self-defense. Furthermore, the essay discusses the concept of state responsibility, outlining the conditions for an international wrongful act, attribution of conduct to a state, and the roles of state organs, private individuals, and instructional movements. It also addresses the concept of reparation, including restitution, compensation, satisfaction, and guarantees of non-repetition, as remedies for the harm caused by wrongful acts, referencing relevant conventions and UN guidelines.