Dmitry Adamsky describes how the Orthodox faith has merged with Russian national identity as the Church continues to expand its influence on foreign and domestic politics. The Church both legitimizes and influences Moscow's assertive national security strategy in the twenty-first century. This book sheds light on the role of faith in modern militaries and highlights the implications of this phenomenon for international security. Ultimately, interrogates the implications of the confluence of religion and security for other members of the nuclear club, beyond Russia.