National identity refers to a person's sense of belonging to a nation, shaped by shared culture, language, history, and values. It plays a crucial role in how individuals perceive themselves and their relationship with their country, influencing social cohesion and national pride. This concept can manifest in various ways, such as through national symbols, traditions, and collective memories. National identity can also evolve over time, reflecting changes in society and demographics, and can be a source of unity or division among different groups within a nation.