1 Subjects: “...Russia & The Former Soviet Union...”

2 Subjects: “...Union of National Defence Employees...”

3 Subjects: “...Union of National Defence Employees...”

4 Subjects: “...Soviet Union...”

5 Subjects: “...unionism...”

6 Subjects: “...Christian union conversations / Germany / History / 20th century...”

7 Subjects: “...; Latin Empire of Constantinople (1204-1261); Fourth Crusade (1202-1204); Church union...”