World Peace (And How We Can Achieve It) looks towards a future where there is increasingly optimistic engagement with the concept of peace. Bellamy assesses why the world is the way it is before making suggestions for how the world can achieve peace. Bellamy suggests world peace is achievable and in the final chapter constructs his articles for world peace. This review essay engages with several themes in the book looking at how the history of international law is framed by the author before assessing Bellamy’s arguments in relation to the state and international organisations. Lastly, the essay casts a legal eye over the author’s articles for world peace. The articles will be of particular interest to readers in international law as they are embedded in the existing systems and structures of the prevailing international system. However, the articles contain the important inclusion of individuals and the role they play in achieving world peace. World Peace allows international lawyers to think more deeply about peace and the points made in this essay raise some issues that may be further debated as scholars map the paths to peace.