frontiersmen

n.

（靠近未开发地带的）边远的居民，边远者( frontiersman的名词复数 )；

Frontiersmen
Frontiersmen : warfare in Africa since 1950
Black frontiersmen : a South American case
God's Frontiersmen: The Scots-Irish Epic by Rory Fitzpatrick
Chikunda transfrontiersmen and transnational migrations in pre-colonia...
The Prazeros as Transfrontiersmen: A Study in Social and Cultural Change
Frontiersmen in Search for the "Lost Horizon": The State of Development Administration in the 1960s
The new frontiersmen: a sociological study of Indian immigrants in the United Kingdom/by GS Aurora
Chikunda transfrontiersmen and transational migrations in pre-colonial South Central Africa, ca 18590-1900
America's tragic metaphor: Our twentieth‐century combatants as frontiersmen