The U.S. defines “refugees” as persons who flee their home country and are unable to return because they have experienced past persecution or have a well-founded fear of future persecution due to their race, religion, nationality, membership in a particular social group, or political opinion. They must prove that the harm is from the government of their home country, or, from some person or group that the government of their home country cannot protect them from. The persecution must also be significant, such as unlawful or political detention, torture, violation of human rights, physical violence, or some type of severe non-physical harm.