Which of the following were strategies used by the union during civil war? pick 2.
a. naval blockage
b. defensive war
c. seizing control of the mississippi river
d. relying on european countries for suplies

A and C. It cant be D because the SOUTH relyed on the european countries for supplies because the south did mostly agriculture. The North was the one doing most of the industry. And also it can't be B because the North was not defensive. They were actually trying to invade into the confederates government and take over

Ibelieve the answer is c