bolster the local Dutch defence forces, which she delivered when she arrived at Hollandia, New Guinea. Karel Doorman was also to have visited Yokohama, Japan during this Asian cruise to celebrate the 350th anniversary of the establishment of Japanese-Dutch diplomatic relations but, due to Indonesian and local protests, Japan withdrew its invitation. After the 1964 refit, Karel Doorman served the rest of her career mostly conducting NATO anti-submarine patrols in the north Atlantic, no longer carrying strike or fighter aircraft as part of her regular air wing. Karel Doorman also regularly conducted various exercises near Scotland during her career. Western New Guinea Crisis During the 1960 crisis, Indonesia prepared for a military action named Operation Trikora. For an invasion, the Indonesian Air Forces (TNI-AU) hoped to sink this aircraft carrier with Soviet-supplied Tupolev Tu-16KS-1 Badger naval bombers using AS-1 Kennel / KS-1 Kometa anti-ship missiles (six planes were intended for the attack on Karel Doorman). This bomber launched missile strike mission was cancelled because of the ceasefire between Indonesia and the Netherlands; this led to a Dutch withdrawal and United Nations temporary peacekeeping administration followed by handover of Western New Guinea to Indonesia. Decommissioning In 1964, following the settlement of issues threatening its former colonial territories and changes in the mission for the Royal Netherlands Navy within NATO, coupled with the huge costs for operating and maintaining an aircraft carrier, it was decided to withdraw her from the operational fleet by the early 1970s. This was to coincide with the arrival of long range maritime patrol aircraft that were to take over the ASW role Karel Doorman had been tasked to perform ever since the start of the 1960s. A boiler room fire on 26 April 1968 removed her from Dutch service. To repair the fire damage, new boilers were transplanted from the incomplete . In 1969, it was decided that the costs for repairing the damage in relation to the relatively short time Karel Doorman was still to serve in the fleet proved to be her undoing and she was sold to the Argentine Navy, renamed Veinticinco de Mayo, where she would later play a role in the 1982 Falklands War. In the late 1960s, the NATO anti-submarine commitment was taken over by a squadron of Westland Wasp helicopters operated from six anti-submarine frigates and two squadrons of shore based maritime patrol aircraft. These were one squadron of Breguet