YOU SAID:
The civil war was fought by the North with the intention of freeing the blacks, who were used as slaves because they were thought to be smaller than the whites.
INTO JAPANESE
内戦は、白人よりも小さいと考えられていたために奴隷として使用されていた黒人を解放することを意図して、北によって戦われました。
BACK INTO ENGLISH
The civil war was fought by the North with the intention of freeing the blacks, who were used as slaves because they were thought to be smaller than the whites.
INTO JAPANESE
内戦は、白人よりも小さいと考えられていたために奴隷として使用されていた黒人を解放することを意図して、北によって戦われました。
BACK INTO ENGLISH
The civil war was fought by the North with the intention of freeing the blacks, who were used as slaves because they were thought to be smaller than the whites.
That didn't even make that much sense in English.