Which of the following was a reason that the us senate refused to let the united states join the league of nations?
they feared trade disputes with britain and france.
they worried about having to take part in future wars.
they wanted to allow germany to balance french power in europe.
they hoped to take over europe’s former colonies.
they were interested in controlling shipping routes in the atlantic.

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.

lend lease program was passed by congress on march 11, 1941. the president could ship weapons, food, or stuff to any country whose struggle against the axis assisted u.s. defense