The exigencies of war with Britain, and survival in an unconquered frontier, gave them little choice.

ECONOMIST: Religion in America

America is unconquered territory, as are Europe's centres of haute couture, France and Italy.

ECONOMIST: Face value

"Here you are, unconquered, pure, transparent, unique, true and always alive, " Maduro shouted as many in attendance cried.

NPR: Fiery Funeral For Venezuela's Chavez

They frequently rebelled under Venetian and then Ottoman occupation, with southern strongholds like Sfakia (a rocky, barren territory centred on port village Hora Sfakion) remaining unconquered.

BBC: Seductive southern Crete

Philip left Sparta unconquered.

BBC: 7 questions on rejection letters

Mountain climbers often set off on expeditions to summit unconquered peaks, but in this month's edition of National Geographic Radio Expeditions, NPR's Alex Chadwick tells the story of four mountaineers on a daring expedition across a vast, desolate landscape in northern Tibet for the goal of conservation.

NPR: Chang Tang's Endangered Antelope