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.
Weixin County, which belongs to Zhaotong City, Yunnan Province, is located in the joint of Yunnan, Guizhou and Sichuan provinces. It is commonly known as the "three provinces of chicken singing". During the long March, the Chinese Workers' and Peasants' Red Army held a famous "Taxi meeting" here. The county covers an area of nearly 1400 square kilometers, with more than 420,000 people of Han, Yi and other ethnic groups (2010). Weixin is a typical mountain county, whose agriculture is mainly corn, rice and flue-cured tobacco. Weixin County has Guandoushan stone carving group, Taxi conference site and large-scale Tiantai Mountain karst cave, Fan people hanging coffin and Tianxing National Forest Park. On April 30, 2019, the people's Government of Yunnan Province decided that Weixin County would withdraw from the sequence of poor counties.