李强主持召开国务院常务会议，部署开展美丽河湖保护与建设行动。

Group 1 - The core viewpoint of the article is the initiation of a beautiful river and lake protection and construction action led by Li Qiang during a State Council executive meeting [1] Group 2 - The action aims to enhance the ecological environment of rivers and lakes, promoting sustainable development [1] - The initiative is part of broader environmental protection efforts, reflecting the government's commitment to ecological conservation [1]