Between 1790 and 1820, how many africans came to the united states?6,000

Which of the following statements is true about germany's use of u-boats?

How have a past president and our current president abused the powers granted to the president of the united states by the constitution and the people ?

What makes fort sill historically unique among other regional military installations? a. it is the site where seven major commanders of us military efforts were trained. b. it houses the largest explosive weapons factory in the united states. c. it specializes in training soldiers to preserve the cultural artifacts of nations invaded by the us military. d. it is the oldest functioning installation in oklahoma.