Operation Northwoods was a proposed false flag operation that originated within the US Department of Defense of the United States government in 1962. The proposals called for CIA operatives to both stage and commit acts of terrorism against American military and civilian targets, blaming them on the Cuban government, and using it to justify a war against Cuba.
The possibilities detailed in the document included the remote control of civilian aircraft which would be secretly repainted as US Air Force plane, a fabricated 'shoot down' of a US Air Force fighter aircraft off the coast of Cuba, the possible assassination of Cuban immigrants, sinking boats of Cuban refugees on the high seas, blowing up a U.S. ship, and orchestrating terrorism in U.S. cities.  The proposals were rejected by President John F. Kennedy.
Who presented the plan to President Kennedy?
The operation proposed creating public support for a war against Cuba by blaming the Cuban government for terrorist acts that would be perpetrated by the U.S. government. To this end, Operation Northwoods proposals recommended hijackings and bombings followed by the introduction of false evidence that would implicate the Cuban government. It stated:
Several other proposals were included within Operation Northwoods, including real or simulated actions against various U.S. military and civilian targets. The operation recommended developing a "Communist Cuban terror campaign in the Miami area, in other Florida cities and even in Washington", which involved the bombing of civilian targets, which was to be blamed on the Cuban government to paint a false image of Fidel Castro and misinform the American public.
The plan was drafted by the Joint Chiefs of Staff, signed by Chairman Lyman Lemnitzer and sent to the Secretary of Defense. Although part of the US government's anti-communist Cuban Project, Operation Northwoods was never officially accepted; it was authorized by the Joint Chiefs of Staff, but then rejected by President Kennedy.