The man who saved jamestown from failure in its early days was john smith humphrey gilbert or john rolfe

Your answer is John Smith.

He saw that not much work was being done.If they were going to survive then everybody would have to pitch in.He set the rule that if you don't do your fair share of work you don't get to eat.

Just so you know John Smith and Pocahontas did not have any romantic connection.

b. 155 enlisted men and no officers

yes.

explanation:

because it let the japanese know who had the upper hand in the war.