Answer: Catton's analysis on the two generals (General Grant and General Lee) focused on their contrasts and similarities.
Explanation: Although both generals were on opposing sides and had some fundamental differences, they had many similarities according to Catton's analysis which are:
1. They were both excellent fighters
2. Both have similar fighting techniques and qualities
3. Both were determined and loyal
4. Both were daring and resourceful
5. After the war, both quickly adjusted to the peace and were instrumental in bringing the two factions together quickly to form a unified nation.