American wars had what effects on industry? Check all that apply. A: Increase in production
B: Increase in unemployment
C: Decrease in production
D: Decrease in unemployment

D and C are the correct answers.

do u have any answer choices?

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.