The answer is critical thinking !!
Answer:
Abraham Lincoln became the United States' 16th President in 1861, issuing the Emancipation Proclamation that declared forever free those slaves within the Confederacy in 1863. ... Lincoln thought secession illegal, and was willing to use force to defend Federal law and the Union.
In Lincoln's view, a union victory and the change of lifestyle in US would mean that the sacrifice has not gone in vain.
Explanation:
For Lincoln, those who died in Gettysburg died for a new and more free US.
This is as such, the reason that they must achieve those ideals and work towards achieving those ideals even harder.
Not only is it important to win the war for the union and keep US united and free the slaves, It is also about living a life more equal
He knew that this would have re defined the nation as a whole and he wanted to ascertain that would in fact happen,
The answer is the bill of rights
