San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Mengla County, one of the counties under the jurisdiction of Xishuangbanna Dai Autonomous Prefecture in Yunnan Province, is located in the southeast of Xishuangbanna Autonomous Prefecture, with a total area of 7056 square kilometers. Mengla County is half-covered by Laos in the east and south, facing Myanmar across the Lancang River in the southwest, Jinghong City, the capital of the Autonomous Prefecture in the northwest, and Jiangcheng Hani and Yi Autonomous County in Pu'er City to the north. In 2010, the total population of Mengla County was 281700. Mengla County is one of the counties inhabited by ethnic minorities. A total of 26 ethnic minorities thrive here, accounting for 70% of the total population of the county. The main ethnic minorities are Dai, Hani, Yao and Yi. In 2013, Mengla County had jurisdiction over 7 towns and 3 townships (including 2 ethnic townships), with a total of 4 communities and 52 administrative villages. In 2011, Mengla County completed