Columbia subject headings:
Harvard subject headings:
Energy policy--Russia (Federation)
Energy security--Germany.
Geopolitics--Russia (Federation)
Germany--Foreign relations--Russia (Federation)
Russia (Federation)--Foreign relations--Germany.
Russia (Federation)--Politics and government--20th century.
Russia (Federation)--Politics and government--21st century.
Princeton subject headings:
National security--Russia (Federation)
Russia (Federation)--Foreign relations.
Russia (Federation)--Politics and government--1991-