Which four acquisitions created an American empire after the Spanish American War of 1898?

Which of the following describes an effect of world war ll on the united states economy a. automobile companies produced a record number of cars b. many factories had to expand to produce military equipment c. the airplane industry suffered as the allies began using airplanes in combat d. cities with shipyards declined because so many ships had been sent overseas.

How have the united states influenced other nations? describe the impact that the u. s. has had on other countries.

What conclusion was reached by the warren commission