pan-post-Soviet
adjUK /ˌpæn(ˌ)pəʊstˈsəʊvi.ət/ · US /ˌpæn(ˌ)poʊstˈsoʊvi.ət/
Etymology From pan- + post-Soviet (“relating to former members of the Soviet Union”), as an extension of pan-Soviet (“spanning the Soviet Union”) by analogy.
1
Political science, Social sciences Spanning all or most of the region which was once part of the Soviet Union, especially in reference to the post-Soviet countries (countries which were once part of the Soviet Union).