evidence: It should be noted, however, that none of these states has formally made a legal claim to a territorial sea around these features. Indeed, no state has made any specific claims to the waters surrounding the features it occupies in the Spratly Islands. [...] On January 29, 2016, the U.S. Navy destroyer USS Curtis Wilbur conducted a freedom of navigation operation by transiting under innocent passage within 12 nautical miles of Triton Island in the Paracel Islands. Triton Island is occupied by the Chinese, but also claimed by Taiwan and Vietnam. The island is legally entitled to a territorial sea. The freedom of navigation operation was designed to challenge policies by China, Taiwan, and Vietnam requiring prior permission or notification of transit under innocent passage in the territorial sea. Accordingly, the United States did not provide notification, or request permission, in advance of transiting under innocent passage. The United States does not take a position on which nation has sovereignty over each feature in the Spratly Islands, and the operation was not intended to challenge any country’s claims of sovereignty over land features. [...] On May 24, 2017, the U.S. Navy destroyer USS Dewey conducted a freedom of navigation operation by transiting within 12 nautical miles of Mischief Reef in the Spratly Islands. Mischief Reef is occupied by the Chinese, but also claimed by the Philippines, Taiwan, and Vietnam. When the Permanent Court of Arbitration issued the decision in Philippines v. China, it found Mischief Reef to be a low-tide elevation. For that reason, Mischief Reef is not legally entitled to a territorial sea.