Columbia subject headings:
Harvard subject headings:
Ch'ŏnanham (Ship)
Korea (South)--Defenses.
Korea (South)--Foreign relations--Korea (North)
Korea (South)--Military policy.
Maritime terrorism--Korea (South)--Paengnyŏng Island.
National security--Korea (South)
Political leadership--Korea (South)
Shipwrecks--Korea (South)--Paengnyŏng Island.
Submarines (Ships)--Korea (North)
Princeton subject headings:
Ch'ŏnanham (Ship)
Emergency management--Korea (South).
Korea (South)--Defenses.
Korea (South)--Military policy.
Korea (South)--Politics and government--2002-
National security--Korea (South)
Shipwrecks--Korea (South)--Paengnyŏng Island.