To save the union.
Abraham Lincoln was an abolitionist and many thoughts that he would make ending the slave trade his main goal. However, he made his primary goal very clear in his letter to Horace Greeley.
“I would save the Union. I would save it the shortest way [that can be taken] under the Constitution. The sooner the national authority can be restored, the nearer the Union will be ‘the Union as it was’.
He also mentioned that,
“My paramount object in this struggle is to save the Union, and is not either to save or destroy slavery.”
The dilemma which besieged Abraham’s tenure was secession. The southern and northern states want to go different ways. This is partly because some states want to preserve the slave trade institution and the others do not. Abraham Lincoln was able to win the Civil war that ensued
Although Abraham Lincoln was able to preserve the Union and as well abolish the slave trade, his methods of politics were questioned by many.