How to start from the root of national tradition

A nation should have a bottom line, the standard of right and wrong should not be vague, and it should have a sense of justice at all times. This is the premise of the existence and development of a nation, and it is the respect for the martyrs who fought against foreign nationalities in past dynasties. They sacrificed to defend this country and culture. This is the bottom line of a nation. Without this nation, they will lose their sense of justice, and some people will go to great lengths to humiliate their ancestors. Society lacks fairness, social values and social chaos. We should learn from the lessons of past dynasties and fight against foreigners.