Theodore Roosevelt's role in the Panamanian Revolution involved:

A) remaining perfectly neutral.
B) sending American ground troops.
C) ordering an economic embargo of Colombia.
D) using American naval forces to block Colombian troops from crossing the isthmus and crushing the revolt.

the answer is a) to be able to obey them.

porter is writing economic history because he is focusing on the cost of developing vaccines.

theodore roosevelt 26th u.s. president : i admire his energy and passion. he was a fundamentally good man, brilliantly intelligent, possessed of extraordinary will and ability, supremely self-confident, bold, egalitarian, idealistic…. , lord, can we have him back?