</s>204-1038-10053 2025 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992 CLASSIFIED MESSAGE ACTION: C/E 2: WE NOTIFIED AND COPY SLOTTED 1400 2: APR (3) (4) (5)

Summary:  
This document contains a classified message dated April 1965 discussing potential sabotage operations against Cuban vessels. It references Dutch authorities suspecting sabotage originating from Rotterday, with possibilities involving the Cuban EFIORE group rather than KUBARK. The text outlines concerns about increased security measures in port areas by Dutch authorities if Cuban ships arrive, making future contact with agents difficult. Specific actions are discussed, including a plan to plant a four-hour delay explosive ("CLAF") on Tetrahydrofuran drums loaded on deck, which have a flash point of 28 degrees Celsius. The message notes that AMLEG 29 (a potential agent) may be reluctant to participate unless assured others are involved and highlights his mother's nervous breakdown as a factor in his hesitation. It also mentions the need for approval from the Chief of Mission regarding instructions for such operations, with prior guidance requested for briefings.  

Key People:  
- AMED 12 (agent reluctant to engage in sabotage without assurance of broader involvement)  
- AMLEG 29 (potential agent involved in internal sabotage; mother's mental health cited as a deterrent)  
- Dutch authorities (suspected involvement in monitoring Cuban activities)  
- KUBARK (group potentially linked to Cuban operations, though not directly implicated in this instance)  
- EFIORE group (Cuban entity possibly associated with the sabotage plan)  

Key Locations:  
- Rotterday (location of suspected sabotage origin)  
- Dutch ports (areas under increased security due to Cuban vessel activity)  
- Havana (destination for Cuban vessels mentioned in the document)  

Key Events:  
- Discussion of sabotage plans against Cuban ships, including explosive planting on Tetrahydrofuran drums  
- Concerns about Dutch authorities increasing port security measures  
- Internal conflicts among agents regarding participation in sabotage operations  
- Request for guidance on briefing the Chief of Mission regarding potential actions  

Key Organizations:  
- Dutch intelligence and security services (monitoring Cuban activities)  
- KUBARK (group potentially linked to Cuban operations, though not directly involved in this plan)  
- EFIORE group (Cuban entity possibly associated with sabotage efforts)

JFK Declassified Files

104-10308-10053.pdf

Document Summary

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