How do foreigners join the US Marine Corps?

American law has no clear restrictions on the nationality of military personnel. Anyone who has reached the age of 18 and has lived in the United States for a certain number of years is eligible to sign up for the US military conscription, and can join the army after passing the examination. The conscription of all services is the responsibility of their respective conscription agencies, and the standards are self-determined. Because the U.S. government will give priority to those who have served in military service when issuing permanent residence permits (green cards) and accepting immigrants' naturalization, many immigrants regard joining the U.S. military as a shortcut to naturalization. Special reminder, US military officers must be people with American citizenship.