In the spring of 1975 , a group of South Moluccans were caught conspiring to steal a heavy truck and ram the gates of Soestdijk Palace to kidnap the queen . Ten members of the group in a vehicle full of firearms were arrested . The group 's alleged aim was to force the Dutch government to recognize the Republik Maluku Selatan ( RMS ) as an independent state and try to make the Indonesian government do the same . Seventeen South-Moluccan youngsters were tried and convicted and sentenced to up to 6 years imprisonment . This was one of a series of actions for this cause during the 1970s , including the 1975 Dutch train hostage crisis , the 1975 Indonesian consulate hostage crisis , the 1977 Dutch train hostage crisis , the 1977 Dutch school hostage crisis , and the 1978 Dutch province hall hostage crisis
1975 Dutch train hostage crisis
1975 Dutch train hostage crisis
Juliana of the Netherlands