"The Valor of Ignorance" is considered a seminal work in the field of military strategy, and it is credited with influencing American military thinking in the early 20th century. It is considered one of the first books to warn of the potential threat of Japan to the United States.
Homer Lea also wrote other books, including:
* "The Day of the Saxon" (1912): This book explored the rise and fall of great civilizations, using a fictionalized history to illustrate his theories.
* "The Valor of Ignorance: A Novel of the Future" (1916): This book is an expanded and revised edition of his original "The Valor of Ignorance".
* "The United States in the World War" (1919): A collection of essays about the United States' role in World War I.
Lea's writings were often controversial and ahead of their time. He was a strong advocate for American preparedness and a vocal critic of the country's military weakness. Although he was often dismissed as a "war monger," his writings have since been recognized as prophetic, particularly regarding the rise of Japan as a military power.