Columbia subject headings:
Europe--Foreign relations--Ukraine.
Geopolitics--Ukraine.
North Atlantic Treaty Organization--Ukraine.
Russia (Federation)--Foreign relations--Ukraine.
Russia (Federation)--History--1991-
Ukraine--Foreign relations--Europe.
Ukraine--Foreign relations--Russia (Federation)
Harvard subject headings:
Europe--Foreign relations--Ukraine.
Geopolitics--Ukraine.
North Atlantic Treaty Organization--Ukraine.
Russia (Federation)--Foreign relations--Ukraine.
Russia (Federation)--History--1991-
Ukraine--Foreign relations--Europe.
Ukraine--Foreign relations--Russia (Federation)
Princeton subject headings:
Europe--Foreign relations--Ukraine.
Geopolitics--Ukraine.
North Atlantic Treaty Organizati on--Ukraine.
Russia (Federation)--Foreign relations--Ukraine.
Russia (Federation)--History--1991-
Ukraine--Foreign relations--Europe.
Ukraine--Foreign relations--Russia (Federation).