The following ideas were presented to the Secretary of Defense in the Operation Northwoods memo:
1. The Operation Northwoods plan included incidents to establish a credible threat from Cuba:
2. The U.S. would respond by executing offensive operations to secure water and power supplies, and destroying artillery and mortar emplacements which threaten the base, and commence large scale military operations.
3. A "Remember the Maine" incident could be arranged in several forms:
4. We could develop a Communist Cuban terror campaign in the Miami area, in other Florida cities, and even in Washington. The terror campaign could be pointed at Cuban refugees seeking haven in the United States. We could sink a boatload of Cubans en route to Florida (real or simulated). We could foster attempts on lives of Cuban refugees in the United Sates even to the extent of wounding in instances to be widely publicized. Exploding a few plastic bombs in carefully chosen spots, arrest the Cuban agents, and release of prepared documents substantiating Cuban involvement would be helpful in projecting the idea of an irresponsible government.
5. A "Cuban-based, Castro-supported" filibuster could be simulated against a neighboring Caribbean nation. We know that Castro is backing suversive efforts clandestinely against Haiti, the Dominican Republic, Guatemala, and Nicaragua at present, and possibly others. These efforts can be magnified and additional ones contrived for exposure. "Cuban" B-26 or C-46 type aircraft could make cane-burning raids at night. Soviet Bloc incendiaries could be found. This could be coupled with "Cuban" messages to the Communist underground in the Dominican Republic and "Cuban" shipments of arms which would be found, or intercepted on the beach.
6. Use of MIG type aircraft by U.S. pilots could provide additional provocation. Harrassment of civil air, attacks on surface shipping and destruction of U.S. military drone aircraft by MIG type planes would be useful as complementary actions. An F-86 properly painted would convince air passengers that they saw a Cuban MIG, especially if the pilot of the transport were to announce such fact. The primary drawback of this suggestion appears to be the security risk inherent in obtaining or modifying an aircraft. However, reasonable copies of the MIG could be produced from U.S. resources in about three months.
7. Hijacking attempts against civil and surface craft should appear to continue as harassing measures condoned by the government of Cuba. Concurrently, genuine defections of Cuban civil and military air and surface craft should be encouraged.
8. It is possible to create an incident which will demonstrate convincingly that a Cuban aircraft has attacked and shot down a chartered civil airliner enroute from the United States to Jamaica, Guatemala, Panama, or Venezuela. The destination would be chosen only to cause the flight plan route to cross Cuba. The passengers could be a group of college students off on a holidy or any grouping of persons with a common interest to support chartering a non-scheduled flight.
9. It is possible to create an incident which will make it appear that Communist Cuban MIGs have destroyed a USAF aircraft over international waters in an unprovoked attack.