What kind of region is based upon peoples shared language customs or art?

Ineed to try to get this right so i can get a good grade so can someone me

During the 1980s, profit from the sale of weapons to iran was used to stop the communists in costa rica. start a proxy war in el salvador. support the contras in nicaragua. stage a coup d’état in guatemala.

Although male citizens have tp enroll in the selective service,the draft has not been used since 1973