This book examines Japanese animation films of Studio Ghibli in terms of war and peace. This research mainly focuses on movies directed by Hayao Miyazaki, a 'Japanese master of animation', who announced his official retirement in September 2013. Through the lens of peace research, the author rediscovered the fact that Miyazaki-related animation films deal with actual wars from the First World War to the 2003 Iraq War. This book investigates the following Studio Ghibli animation movies: 1) Nausica of the Valley of the Wind (1984), 2) Laputa Castle in the Sky (1986), 3) Grave of the Fireflies (1988), 4) Porco Rosso (1992), 5) Howl