Анотация: This book was written for general readers who are interested in the Dokdo issue. For the reader's convenience, I divided the book into two sections: The first half focuses on the process of territorial incorporation prior to 1905 by reconstructing the history using the sources discovered so far. Nakai Yozaburo was the central character in this part. In addition to this, I introduced historical events that show problems in the process of territorial incorporation of Dokdo. In the second half, the life of Yamaza Enjiro who played a key role in territorial incorporation was examined. Particularly, I focused on the investigation of how he developed his career in Korea and associated with the people around him to study how he influenced the Russo-Japanese War. (Ye Yong-jun)