The following images are copy of document that was classified as Northwoods Document. Now declassified (not all pages) from CIA archive.
The following depicts a proposal and a methodology of how Cuba could have been attacked on pretext of being a threat against United States.
The following gives us an idea of how intelligence services works. These type of works are not specific to any country. It is a standard implementation of national security and a job for those who are in the top of the security system in a country, not only United States.