So the solution is to pack the nukes inside a package where its unilaterally optional to one side? Now that makes all the difference and not sneaky at all. Ok, so China offering Cuba a pact where Cuba is free to enter into the most beneficial agreements they can choose within their possibilities, and China is obligated to declare war on anyone attacking or blockading Cuba (with an option for China to later bring in nukes to Cuba anytime they want after that pact is  accepted) Now who wouldn't agree to that!