1. pentameter
2.dactilyc
3.irony
4.personification
5. simile
6.rhyme scheme
7.language
8.true rhyme
9.slant ryhme
10.trochaic
I'm not sure about 3 and 10
The sentence is drawing a parallel between the two parties' reasons for going to war. Each of them is associated with a verb: one with "survive," the other with "perish." They are the two antonyms.
Antonyms are words which have opposite meanings. <em>Survive </em>means to contine living, and <em>perish </em>means to stop living.
What Lincoln meant by using this antonym-based parallelism is that the Confederacy fought to end the exisiting nation (meaning, to secede from the North and create a new nation), while the Union fought to keep the nation alive by preventing it from splitting.