Why didn’t the United States invade Cuba?

There are many reasons for this problem, and there are several main reasons. First, it is not that the United States has never invaded Cuba. A few years after the Cuban revolution was successful, the United States organized mercenaries to attack Cuba. As a result, it was defeated by Cuba within 72 hours and suffered a shameful defeat. Second, Cuba is really far away from the United States. It's too close. It takes half an hour to get to Florida by big plane, or it only takes two days to float there by boat. If we attack Cuba, it is likely that a large number of Cubans will go to the United States. In 1992, there was a large number of Cubans from the United States. Castro incited Cubans to drift away from Cuba to the United States (Florida). When Castro got angry, he imposed no restrictions on these immigrants, which caused great trouble to local order and security in the United States. In the end, the United States took the initiative to negotiate with Cuba and demanded that the two countries Normal immigration exchanges have resumed, and there are many Cuban expatriates in the United States. Many of them are against Lao Card, but these Cubans still love their country and do not want their country to be invaded; thirdly, the Caribbean countries, such as Jamaica, the Bahamas, Saint Lucia, etc., have a lot of U.S. investment. Their economic development relies heavily on the United States. If they attack Cuba, it will inevitably have an impact on these countries, and in fact, it will harm the interests of the United States itself. There is no benefit; after so many years, the fourth veteran still has a high prestige in the world, and he has not taken the initiative to attack the United States with force. The United States has no name and is morally untenable. This is what I have learned from living in Cuba for more than three years.