Serve the motherland.

Advocating military and advocating martial arts emphasizes the spirit of advocating military and armed force. The next sentence "Serve the motherland" emphasizes the responsibility of serving the country and protecting the country. This expression reflects loyalty to the country and determination to fight for the interests of the country. Advocating the military and serving the motherland are manifestations of patriotism, inspiring people to work for the country's prosperity and security, and embodying the national spirit and collective consciousness.