Answer: Protection of civil liberties and civil rights is perhaps the most fundamental political value in American society. And yet, as former Justice Frankfurter explained in the quote above, the people who test liberties and rights in our courts are not always ideal citizens.
Explanation:
The Sparta, Athens, and other Greek communities collected natural resources to build walls to protect them from external attacks. However, they eventually succumbed to attacks via the ocean route.
The Union used its number of ships to keep the south from exporting or importing its goods to foreign countries. It also used the ships to spread slave-revolt propaganda to convince European countries to not to trade with the South so they'll be economically weak to provide their soldiers with nessecary equipment such as weapons, food, and clothing. The union also used its wealth to buy southern loyalties to block south' sports to weaken confederates further more. Also, the North had railroads which the government bought from different companies to provide transportation to their men faster along with weapons. They also had many inventors who came up with gadgets and codes to help the army.
The answer is hired bands of samurai