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.
"Alashan" is Mongolian, which means "colorful place". Alashan League is located in the westernmost part of Inner Mongolia Autonomous region, connected with Wuhai, Bayannur and Ordos in the east and northeast, Ningxia Hui Autonomous region in the south and southeast, Gansu Province in the west and southwest, and Mongolia in the north. the border is 735km long, with a total area of 270000 square kilometers. As of 2018, Alashan League has jurisdiction over 3 banners and 4 autonomous district-level development zones, and the League Administrative Office is located in Bayanhaote Town, Alashan Zuoqi. With a total population of 250000, it has the largest area and the smallest population among the 12 cities in Inner Mongolia Autonomous region. Alashan League is a border minority area with Mongolian as the main body and Han nationality as the majority. there are 28 ethnic groups, such as Mongolian, Han, Hui, Manchu and so on. Alashan has a long history.