Can someone please answer this! ASAP

In an effort to end the civil war, in 1864 the union planned to

Concentration camps built by nazis in 1933 initially held

What was the main cause of the russian revolution? a. the protests against the war with poland b. the tremendous war losses of world war 1 c. the protests against the treaty of brest- litovsk d. the losses dictated by the treaty of versailles