Editors. "USA warns Britain against shifting British Guiana's boundary with Venezuela". The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=19161, accessed 21 April 2014.]
USA sends a diplomatic note to Britain, declaring that a modification by force of the boundary between British Guiana and Venezuela would be a violation of the Monroe doctrine. This ruling, which was passed in 1823, declares to intervention or occupation of land in the Americas would be seen as acts of war by the USA.