Mons. Nikola Eterović's book, ‘Silent Power: The Diplomacy of the Holy See’, published by Kršćanska sadašnjost, offers an insightful look into Vatican diplomacy through the lens of a man who has been a key player for decades. It combines personal experience, ecclesiastical perspective, and the historical context in which the Vatican has operated on the international stage. The book is timely, considering the increasing need for transparency in diplomatic relations, particularly those involving the Catholic Church and global politics.

The film premiering alongside the book, also titled ‘Silent Power’, directed by Jakov Sedlar, focuses on Mons. Eterović’s crucial role in fostering Croatia’s international recognition and its relationship with the Vatican during the 1990s. According to Sedlar, this work tells a significant story for Croatia, highlighting the biographical and diplomatic instances that the nation can take pride in. The film complements the book's themes, shedding light on the intricate dance of diplomacy that charmed nations and established crucial ties.

Both the book and the film serve not only as a retrospective examination of past events but also as a commentary on the evolving role of the Catholic Church in contemporary international relations. Monsignor Eterović discusses the unique characteristics of Vatican diplomacy, its influence on global affairs, and shares his personal experiences navigating these complex dynamics. This dual release underscores the narrative of Vatican influence in shaping modern global systems, especially in relation to the Croatian context during a tumultuous time in its history.