Editors. "USA signs treaty of friendship with Samoa". The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18751, accessed 20 May 2013.]
The USA signs a treaty of friendship with Samoa. By the terms of this agreement, the Americans are permitted to established a naval base at Pago Pago, while in return they promise aid in the event of a third party interfering in Samoa.