Which caused the us army to take over atomic research in the early 1940s?
the first atomic bomb test
a letter from albert einstein
japans research into atomic bombs
the us entry into world war ii

By the late 1930s, how were u. s. officials beginning to view japanese policies of expansion? a. they attempted to join forces with japan so as to increase u. s. territory. b. they warned them to stop expansionist actions or face potential u. s. intervention. c. they sent representatives to japan to work out territorial rights in a diplomatic fashion. d. they became fearful of their military power

(05.04 mc) how did the roman transportation system keep the empire strong? plz

Why did president wilson want the us to provide leadership at the end of wwi