This manuscript consists of two parts, Part I. and Part II. Part I., written by the same author and titled "THE PERSECUTED CHURCH: THE CLANDESTINE CATHOLIC CHURCH (ECCLESIA SILENTII) IN CZECHOSLOVAKIA DURING COMMUNISM 1948 – 1991," was published in the January issue of the Occasional Papers on Religion in Eastern Europe (OPREE), ISSN: 2693-2148.2 It includes a brief historical overview and introduces the Clandestine Catholic Church (Ecclesia Silentii) in Czechoslovakia during Communism from 1948 to 1991. Part II. directly follows Part (...) I. and continues with the following sections: Results, Discussion, Conclusion, and References. Part II considers the collapse of the Czech Roman Catholic Church and the end destruction of the Clandestine Catholic Church by the Holy See, along with the process of secularization after the fall of communism in Czechoslovakia from 1991 to 2021. (shrink)