What military strategy was MOST common on the front lines in World War I? A.
guerrilla warfare
B.
aerial warfare
C.
blitzkrieg warfare
D.
trench warfare

I'm fairly certain I'd be D! the trench warfare.

trench warfare

Trenches—long, deep ditches dug as protective defenses—are most often associated with World War I, and the results of trench warfare in that conflict were hellish indeed

jewish people sniffed up all of the money, thus making it hard for society

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