The second last sentence of the first paragraph is the key message conveying Lincoln's view that war was forced for the protection of the nation.
"<span>Both parties deprecated war; but one of them would make war rather than let the nation survive; and the other would accept war rather than let it perish."</span>
The three themes that became important during the Renaissance are the following: Entertainment, Leisure and Fashion. Renaissance has emphasized on humanism, secularism, individualism, rationalism and virtu. Hope this answers your question. Have a great day!
U.S. President Abraham Lincoln