sentences:  After the election of 1959 De Jong was appointed as Minister of Defence in the Cabinet Marijnen, taking office on 24 July 1963.The Cabinet Marijnen fell on 27 February 1965 and continued to serve in a demissionary capacity until the cabinet formation of 1965 when it was replaced by the Cabinet Cals with De Jong continuing as Minister of Defence, taking office on 14 April 1965.The Cabinet Cals fell just one year later on 14 October 1966 and continued to serve in a demissionary capacity until it was replaced by the caretaker Cabinet Zijlstra with De Jong remaining as Minister of Defence, taking office on 22 November 1966.