Wintry, forward and backward? (4,3)

I believe the answer is:

cold war

(Other definitions for cold war that I've seen before include "State of tension after 1945" , "Intense hostility between nations without actually fighting" , "State of tension and hostility" , "Chilly hostility between nations without actual fighting" , "Low card (anag.)" .)

I've seen this clue in the Universal.

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