Llama distinguished by the inhabitants of South America are recognized as distinct species, though with difficulties in defining their distinctive characteristics. These are: The llama and alpaca are only known in the domestic state, and are variable in size and of many colors, being often white, brown, or piebald. Some are grey or black. The guanaco and vicuña are wild, the former being endangered, and of a nearly uniform light-brown color, passing into white below. They certainly differ from each other, the vicuña being smaller, more slender in its proportions, and having a shorter head than the guanaco. The vicuña lives
Chile–Peru relations formally presented the case to the International Court of Justice, in which the Peruvian government sued the state of Chile regarding the Chilean-Peruvian maritime dispute of 2006–2007. The court is expected to reach a verdict in no less than 7 years. In 2011, prior to new Peruvian President Ollanta Humala's visit to Bolivia in his pre-inauguration Pan-Americas tour, Peru agreed to cede territory claimed by Bolivia against Chile so as to facilitate resolution of the maritime claim. The 1929 Peace and Friendship treaty, which formalized relations between the three states following the War of the Pacific, requires Peru's "prior agreement"