They questioned the role of the government and beliefs held within the states.
japan seized manchuria because japanese believed that japans empire should be equal to the size of the western powers empire
Responding to xenophobic concerns, Congress passed an emergency law restricting immigration in 1921. Among other provisions, the Act established a quota (a proportional share of a total) for nationalities on the basis of their numbers in the U.S. in 1910.
The missing detail is: a quota.
