<prompt> Translate the following text to SwahiliUS president John F. Kennedy imposed a naval blockade on the island to ensure no more missiles arrived and insisted that the existing ones be removed.  <response>: Rais wa Marekani John F. Kennedy aliweka kizuizi cha majini juu ya kisiwa hicho ili kuhakikisha kwamba makombora zaidi hayangefika na alisisitiza kwamba yale yaliyopo yaondolewe. 