Ferdinand Marcos knew that the U.S. secretly stored nuclear weapons in the country, but never told anyone.

This is according to a document released by the National Security Archive based in George Washington University.

The said top-secret memo was from US career diplomat Robert McClintock. He informed then acting secretary of the US State Department that the storage of nuclear weapons “would be covered by executive privilege and not divulged to the Symington Subcommittee on overseas commitments.”

The memo also suggests that the nuclear weapons have been stored in the country for many years “without prior consultation with the Philippine Government.”

The document added: “The fact that President Marcos was secretly informed of the presence of these weapons in 1966 would not work to his advantage in the elections. The Philippine government and public are not aware of storage nor of President Marcos’ knowledge thereof.”