Columbia subject headings:
North Atlantic Treaty Organization--Europe, Eastern.
Ukraine--Foreign relations--United States.
Ukraine--Politics and government--2001-
United States--Foreign relations--Ukraine.
Harvard subject headings:
North Atlantic Treaty Organization--Europe, Eastern.
Ukraine--Foreign relations--United States.
Ukraine--Politics and government--1991-
Ukraine--Politics and government--2001-
United States--Foreign relations--Ukraine.
Princeton subject headings:
North Atlantic Treaty Organization--Europe, Eastern.
Ukraine--Foreign relations--United States.
Ukraine--Politics and government--1991-
United States--Foreign relations--Ukraine.