A person employed on a U.S. or German ship or aircraft who would otherwise be covered
            under the laws of both countries will be covered only by:
         
         
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                  • 
                     the United States if the person is a U.S. national, 
 
 
- 
               
                  • 
                     Germany if the person is a German national, or 
 
 
- 
               
                  • 
                     the country in which the person resides in all other cases