Answer:
Alfred Thayer Mahan was an American naval officer who is known for his influence on sea power during 19 and early 20 centuries.
According to Mahan, sea power is highly influenced by the distribution of the populations, and their characteristics that maintain stable and efficient working ability. so, such efficiency and stability come from racial traits and native American citizens are good at it.
This thought of Mahan invokes racial differences to support his arguments.