Sentence:  A second school, common amongst liberal  writers, locates the conflict at the level of policy mistakes, missed opportunities and misperceptions on both sides: in this view, the conflict was avoidable- better communication in the period after I945 or in the late 1970S could have avoided both Cold War I and <WSD>Cold War II</WSD> . 
Meaning of the word marked with <WSD> tags:  (dated) Mostly the late 1970s–1980s phase of the Cold War.