Were both located near the Indian Ocean coast
There were many factors that allowed the Byzantine Empire to last a 1000 years after the end of the Roman Empire which include the fact that Constantinople, the capital of the Byzantine Empire, was protected with walls that lasted almost the entire 1000 years, making Constantinople, and the center of the empire's economy/culture impervious to invaders.
Lincoln's main objective was to preserve the unity of his country, so he closely supervised the war effort, especially the selection of generals who would lead the army. In addition, the president made important decisions in the war strategy of the Union, including a naval blockade that prevented the trade of the southern states, the movements to take control of Kentucky and Tennessee and the use of gunboats to dominate the waterways. from the south. Lincoln repeatedly tried to conquer the Confederate capital at Richmond, a mission he commissioned successive generals until Grant succeeded. While the war was being waged, its complex movements to end slavery included the Proclamation of Emancipation in 1863.
Let’s go with B ( and see)