Yellow Peril

Yellow Peril (sometimes Yellow Terror) was a colour metaphor for race that originated in the late nineteenth century with Chinese immigrants as coolie slaves or laborers to various Western countries, notably the United States, and later associated with the Japanese during the mid-20th century, due to Japanese military expansion.

The term refers to the skin color of East Asians, and the belief that the mass immigration of Asians threatened white wages and standards of living.