Alfred Thayer Mahan was a United States naval officer, historian, and one of the most influential American authors of the nineteenth century.
He argued that modern navies needed repair and coaling stations, which would not be dependable if controlled by other nations. This reasoning implied a justification for American acquisition of colonies to develop port facilities throughout the world.
B. He conquered the last of the Song Dynasty and brought China under Mongol rule.
Explanation:
Kublai Khan is one of the best known Mongol rulers, both for good and for bad. He was the grandson of Genghis Khan, and unlike his grandfather and father, he ruled in a manner that promoted tolerance among the different groups of people. One of the things by which Kublai Khan is best known is that he was the first Mongol to conquer and rule all of China.
Kublai Khan managed to conquer the last independent Chinese state, the Song Dynasty, incorporated it into the Mongol Empire, and formed the Yuan Dynasty. While this was seen as a great success and promised a long lasting and powerful empire, Kublai Khan also made some mistakes (mostly military ones) that actually started off the decline of the empire.
During the American Civil War, the north and the southern armies had different goals, the Union at the beginning wanted to reunite the country, but later the goal changed to include the abolition of slavery. The Confederacy had a different goal, wanted to incorporate all slave states and secede from the Union.
To win the war the Union had to capture the Confederate territory and the Confederate just wanted to defend its territory.
After the capture of Port Royal, the Union noticed that it would be effective to make an economic pressure into the Confederates and establish a US military depot on the southeastern coast to carry out land and sea operations.
After the win of the Port Royal battle by the Union, the Confederates noticed that the coastline was too big to defend so the Confederates concentrated the defenses further inland, nearer the coastal railroads in the hope that reinforcements could be rushed to any danger point in time to prevent its capture.
The answer would be, "E<span>nslaved people were sold to the Ottoman Empire as household servants and agricultural workers." Technically, this was less harsh than say, building houses or being a courier.</span>
