One weakness of the articles of confederation was that they provided for:
a) a weak bill of rights
b) a city-manager system
c) separate states with appointed governors
d) a unanimous vote of the states to amend the articles

need more info

explanation:

are you asking for our opinion?

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