What was the cold war? a. an armed conflict between the united states and the ussr that lasted from 1946-1991 and included occupation of several european countries by the united states b. the nickname given to efforts by the cold, northern countries of europe to resolve their energy crisis in the 1990s in order to avoid deaths caused by hypothermia c. armed warfare between eastern europe and western europe from 1968-1973 d. armed warfare between eastern europe and western europe that lasted from 1986-1991 e. an ideological struggle between the united states and the former soviet union that lasted from 1946-1991, and included soviet occupation of several european countries?