This report offers a comprehensive look at the air-raid protection measures employed in Japan during World War II, as well as an evaluation of their effectiveness. It covers various aspects of air-raid protection, from the construction of bomb shelters to the use of air-raid alarms. The report also includes an analysis of the social and economic impact of air raids on Japanese society. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.