Final answer:
Chain migration refers to the social process where individuals from the same community migrate sequentially, following established networks to a new destination, whereas overall migration considers all types of population movements. Forced migration and illegal immigration are distinct forms of migration driven by various urgent circumstances.
Step-by-step explanation:
Chain migration is a term used to describe the social process by which migrants from a particular town follow others from that same town to a new destination. This pattern occurs when migrants settle in a new place and then create networks that facilitate further migration from their community of origin to the destination. Overall migration, on the other hand, encompasses a broader scope, referring to the general movement of populations from one location to another for various reasons such as economic opportunities, environmental conditions, or forced circumstances.
Migrants, including those involved in chain migration, often move due to compelling factors including the desire for employment, better living conditions, or to join family members who have previously migrated. The United States, known for its history of immigration, has seen both legal and illegal immigrants joining the workforce. In chain migration, a member of a community migrates and establishes him or herself in the new location, and this often paves the way for more individuals from the same community to follow, creating a sequential migration flow.
It is important to note that migration is not always voluntary. Forced migration includes movement due to persecution, conflict, violence, or environmental disasters. Conversely, illegal immigration is a result of individuals bypassing established legal channels, sometimes driven by urgency due to violence, poverty, or environmental crises.