Li Guo'an is a regimental commander of the Hydrologic Engineering Regiment,Beijing Military Area, the People's Liberation Army of China. He became a soldier when he was fifteen years old, once being a medicine doctor, vice director of medical team and director of logistics division. After he was a regiment commander, he worked very hard in hydrogeology, geophysical survey and drill-hole exploration. To experience innumerable hardships and overcome a number of difficulties, he drills wells for the local soldiers and people in the wide Gobi grassland of Inner Mongolia and the northern frontier region, and has created six miracles of human being challenging to nature. The unsophisticated and hard-working peoples in the Inner Mongolia praise him as "water god", who is, actually, a hydrologist by study on his own. His miracles have been a model to be learnt by all the party, all the army and all the people, especially, by the scientists and technicians. Jiang Zemin, the chairman of Central Military Committee, signed his name to an order and conferred him the glory title of model regimental commander on Jan. 7, 1996.Li Guo'an and his companions, to act strongly with sense of responsibility and mission, practise audaciously and explore bravely, and have opened many fresh water wells in dry and water-lacking area.By drilling, he got fresh water which is in line with the national standard in sub urban district of Hohhot, Inner Mongolia where is a region of high arsenic and fluorine in 1993.
He was successful to open well in latest 1992 in cold area to the north of forty degrees north latitude drilling in winter. In the same year, he brought about a well by continuous demolitions within a holl in the boulder beds of the Daqing Mt. region. He discovered water in 1993 in Shijiazhuang area where was once an area of no or little water. He found fresh water in 1994 in the frontier regions of Inner Mongolia where is a highly mineralized area. He was successful to look for water-bearing small structures in regional waterless background of Erenhot area in 1994.He has been regarded it as his seeking of life for more than 5 years since having been a regimental commander that "I would rather drink salty water myself and is happy to send fresh water to people". In 1993, he was terribly ill and operated. Not to be fully recovered, he was discharged from hospital firmly, returned back to the troop, and did hydrogeological survey with wound and suffering of the operation. He has decided to fight all his life for the cause of water-supporting to soldiers and people in the frontier area, to shuttle along the frontier line of Inner Mongolia and to make new contributions for consolidating the frontier.