However, a 1973 U.S. diplomatic cable, now declassified, noted that UNC protested North Korean intrusions within of UNC controlled islands as armistice agreement violations, but did not protest NLL intrusions as the NLL was not mentioned in the armistice agreement. South Korea wished to describe all NLL penetrations as "military provocations", but the U.S. saw that as a major problem for the U.S. position on the armistice agreement. In 1975 the UNC position was that North Korean fishing or patrolling south of the NLL, outside of the UNC controlled islands, was not justification for any coercive actions by UNC controlled vessels; the UNC would not participate in establishing an exclusive South Korean fishing zone.