In modern struggle against aggression,Chinese people rewrote the national spirit and endowed it with new connotation of the era.Awareness of the potential perils aroused the nation's sense of crisis and laid the ideological foundation for national salvation in modern China.The spirit of unceasing self-improvement encouraged the nation to oppose aggression and became the dynamic source of the development of modern China.Undaunted courage supported the Chinese people to unit and forge ahead.