After World War II, the diocese of Mukačevo in Transcarpathia was annexed by the Soviet Union, thus the diocese of Prešov included all the Greek Catholics that remained in Czechoslovakia.
The diocese of Mukačevo in Transcarpathia was annexed by the Soviet Union. This was after World War II. The diocese of Prešov included all the Greek Catholics. This was after World War II. These all the Greek Catholics remained in Czechoslovakia.