Progressive Unionist Party References Progressive Unionist Party political party, Northern Ireland, United Kingdom Ask Anything Homework Help Also known as: PUP Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Ulster Volunteer Force…UVF was affiliated with the Progressive Unionist Party (PUP) from the party’s founding in 1977. Read More…UVF was affiliated with the Progressive Unionist Party (PUP) from the party’s founding in 1977. Read More