Answer: d.
Explanation: they used them to spy on each other
A fleet of warships called is called also naval fleet
Fredrick Douglass though it was inmortant for African Americans to fight in the war because.....They were slaves...well some werent but they had to be on the <span>confederete side because there color people were slaves.
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The differences between the Mughal and the Ottoman Empires is that the Ottomans had a majority Christian region, while the Mughals were ruling over Hindu majority region.
