Under this view, it was co proprietor with the right to co-regulate the navigation through the Straits and Chile had no border with the Atlantic Ocean. The west end of the Straits of Magellan was also a cause of conflict. Argentina considered the channels and bays part of the straits and demanded free navigation through all waters as stipulated in the Boundary Treaty of 1881 for the Straits. On 14 June 1977, the Chilean Government issued the decree n°416 over the baselines (See Chilean Baselines Map). The decree had two main implications for the controversy. First, it extended the range from which Chile might attempt to project its 12-mile territorial sea and 200-mile Exclusive Economic Zone along a continued line from Picton, Nueva, and Lennox Islands as far south as Cape Horn, thus greatly increasing its potential maritime jurisdiction to the east and southeast. Second, it effectively converted all waters enclosed by the baselines into Chilean internal waters where navigational rights for Argentina would exist only through explicit agreements with Chile. The Argentine port of Ushuaia, located on the north shore of the east Beagle Channel, had no direct free way to the Pacific Ocean through Argentine waters. Argentina has so far considered its unfettered use of the waters surrounding the Fuegian Archipelago to be a matter of critical importance for its commercial and military navigation. The two countries have always linked their Antarctic claims to their continental possessions because the nearness and the projection of the countries over the Antarctic can substantiate a claim over territories. History of the conflict Attempts to clear up the dispute were unsuccessful from 1904 until 1971. Incidents The increasing significance of the region led to various incidents and confrontations between Chile and Argentina around transit and fishing rights, which potentially could lead to full-scale war. The Snipe incident was the most serious incident occurred in the zone. Beagle Channel Arbitration (1971–1977) In 1971 Chile and Argentina signed an agreement formally submitting the Beagle Channel issue to binding arbitration under auspices of the UK's Queen Elizabeth II. The court that was to decide the controversy was composed of five judges selected by Chile and Argentina from the International Court of Justice at The Hague. The court of arbitration's final decision would be submitted to the British Crown, which was then to recommend acceptance or rejection of the award of the court but not to