What motivated New World colonies to trade goods with each other? The colonies used the same money system.
They did not want to trade with other countries.
There were not enough people in Europe to trade with.
Different colonies produced different crops and products.

Different colonies produced different crops and products

c) troops march forward in close formation against newer, more accurate weapons

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