can anyone give me evidence that supports the way that the American people felt about immigrants during the 3 different time periods.

Some believe immigrants can strenghten America's society. Other think of them as a threat.

Explanation:

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