Answer: False
Explanation: I'm not the expert on this, but I know that Caliphs are regarded as monarchs that are the <em>sucessors</em> to Muhammad, so one would assume he wouldn't have any sucessors while he was still alive.
The US government thought that internment camps were necessary for the Japanese descendants and Japanese-Americans because they believed that most of them were spies for Japan, and it was they that leaked information and coordinated the attacks
hope this helps
Accessibility to resources, its hunger for power, the competition between it and others, and great trade relations.