Secret letter, 23 October 1965, from CINCPAC political adviser Norman Hannah to Ambassador Marshall Green asking for contingency thinking on US covert or material help if the Army fought the PKI. Shows early US planning for support to the anti-PKI campaign.
US Embassy telegram, 30 Nov 1965, recording a Polish diplomat's claim that a PKI Central Committee member was 'elated' on 1 October and that only an Aidit-led 'special group' knew of the plot. Secondhand diplomatic evidence on PKI involvement.
US Embassy airgram A-673, 4 May 1966, transmitting an Angkatan Bersendjata article tying China to the 30 September Movement and analysing Army propaganda since October 1965 (shielding Sukarno, blaming PKI and China). Embassy view of the propaganda environment.