
1) Capital of former nation 2) City in Peru 3) Peruvian region 4) Region of Peru
Found on
https://www.crosswordclues.com/clue/tacna

(from the article `Pacific, War of the`) Chile was also to occupy the provinces of Tacna and Arica for 10 years, after which a plebiscite was to be held to determine their nationality. But ...
Found on
http://www.britannica.com/eb/a-z/t/2

city, southern Peru, on the Caplina River at 1,844 feet (562 m) above sea level, in the arid Andean foothills. When the Spaniards arrived at the ...
Found on
http://www.britannica.com/eb/a-z/t/2
No exact match found.