Final answer:
If you were forced to leave your country due to famine and later returned, you took part in return migration. This type of movement is part of broader migration patterns that can be voluntary or forced, the latter often due to adverse circumstances like persecution or conflict.
Step-by-step explanation:
If you were forced to leave your country due to a famine but later returned to your country of origin, you took part in return migration.
Forced migration or displacement is migration due to events like persecution, conflict, violence, or in this particular case, a famine. When individuals like yourself eventually return to your homeland after such events, it's considered return migration according to the National Geographic Society's definitions.
During historical events such as World War II, the repatriation of displaced persons was a significant and complex process. Operation Keelhaul was an example of forced repatriation, where displaced individuals were returned, often unwillingly, to their countries of origin.