US ambassador to Brazil sends cable to Dept. of State recommending a wide range of overt and covert military operations to overthrow democratically-elected President Goulart in Brazil: "(a) that measures be taken soonest to prepare for a clandestine delivery of arms of non-US origin, to be made available to Castello Branco supporters in Sao Paulo as soon as requirements known and arrangements can be worked out. Best delivery means now apparent to us is unmarked submarine to be off-loaded at night in isolated shore spots in state of Sao Paulo south of Santos, probably near Iguape or Gananeia. (b) This should be accompanied by POL availabilities (bulk, packaged, or both may be required), also avoiding USG identification, with deliveries to await outbreak active hostilities. Action on this (Deptel 1281)/4/ should proceed forthwith. /4/Telegram 1281 to Rio de Janeiro, March 26, reported: "Defense providing list of materials required and other data on POL tanker action we discussed with you. Urgently awaiting your on-scene assessment of total situation as basis for moving ahead on this and on shaping next steps vis-à-vis Brazil." (National Archives and Records Administration, RG 59, Central Files 1964-66, POL 2 BRAZ)
14. The above two actions might suffice to secure victory for friendly forces without any overt US logistical or military participation, especially if politically covered by prompt US recognition our side as legitimate GOB. We should, however, also prepare without delay against the contingency of needed overt intervention at a second stage and also against the possibility of Soviet action to support the Communist-leaning side. To minimize possibilities of a prolonged civil war and secure the adherence of large numbers of band-wagon jumpers, our ability to demonstrate commitment and some show of force with great speed could be crucial. For this purpose and in keeping with our Washington talks March 21, one possibility appears to be the early detachment of a naval task force for maneuvers in south Atlantic, bringing them within a few days’ steaming distance of Santos. Logistical supplies should meet requirements specified in CINC South Brazil contingency Plan (USSCJTFP-Brazil)/5/ reviewed here March 9. Carrier aircraft would be most important for psychological effect. Marine contingent could perform logistical security tasks set forth CINC South Plan. We would welcome advice soonest on this or alternative methods meeting objective described above."