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Also, without sufficient bases of its own, the United States 
      Navy would be unable to protect American trade routes across 
      the pacific and Atlantic and could be cut off from vital sources 
      of supply in Malaya and Dutch east Indies. Even the coastwise 
      traffic to South America might be subject to attack by raiders 
      in a manner similar to the damage inflicted on Greek vessels 
      in the Mediterranean during the past year.
 
      
 
 
Because of the possibility of the blocking of the Panama canal 
      by sabotage, the United States would have to maintain adequate 
      naval forces on the Atlantic Coast as well as in the Pacific. 
      In spite of the fact that distances in both the Pacific and Atlantic 
      decrease to a certain extent the possibility of a successful 
      naval attack, a very large fleet- two fleets, in fact- would 
      be necessary to meet these requirements.
 
      
 
 
An imponderable in the situation is, of course, Soviet Russia. 
      There is, however, no warrant for believing that the Soviet Union 
      would be on the side of the United States. It seems just as likely 
      that Germany would be able to exert a preponderant influence 
      on Russia without actual invasion, or that the doctrinaires of 
      the Kremlin would retire into splendid isolation, hoping for 
      the day when the pickings in Europe or Western China