The ability to smelt metal led to which cultural innovation in early civilizations around the world? a. development of governments based on written codes b. the domestication of animals for food c. advancements in architecture due to better tools d. the shift from an oral tradition to a written one

so, based on the research i've done. the u.s. government were always on a wild goose chase just to take down castro. he then retired his trone to his brother raul in 2008 due to some health issues. so it's obvious your answer would be:

castro had no allies from which he could receive aid.

hope this and have a fantastic day!

                                                    -wolfiewolffromsketch