In this comprehensive guide to Pennsylvania's participation in the First World War, the Pennsylvania War History Commission provides a wealth of information on the political, social, and military aspects of this pivotal conflict. From its causes and consequences to the role of Pennsylvania soldiers in the trenches, this book offers a unique and detailed perspective on the war that changed the course of modern history. With maps, photographs, and detailed descriptions, this book is a must-read for anyone interested in the history of the First World War and its impact on the United States and the world.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.