What symbal do some people wear on remembrance day to show their respect?

On Remembrance Day, many people wear a red poppy as a symbol of respect and remembrance for those who have served and sacrificed their lives in military conflicts. The poppy's significance stems from the poem "In Flanders Fields," which describes how the flowers grew amidst the graves of soldiers in World War I. The tradition began in Canada and has since spread to various countries, serving as a powerful reminder of the cost of war.