<P> The relations between the United States of America and the Union of Soviet Socialist Republics ( 1922 -- 1991 ) succeeded the previous relations from 1776 to 1917 and predate today 's relations that began in 1992 . Full diplomatic relations between the two countries were established late due to mutual hostility . During World War II , the two countries were briefly allies . At the end of the war , the first signs of post-war mistrust and hostility began to appear between the two countries , escalating into the Cold War ; a period of tense hostile relations , with periods of détente . </P>
<P> The relations between the United States of America and the Union of Soviet Socialist Republics ( 1922 -- 1991 ) succeeded the previous relations from 1776 to 1917 and predate today 's relations that began in 1992 . Full diplomatic relations between the two countries were established late due to mutual hostility . During World War II , the two countries were briefly allies . At the end of the war , the first signs of post-war mistrust and hostility began to appear between the two countries , escalating into the Cold War ; a period of tense hostile relations , with periods of détente . </P>
following world war ii a cold war developed between the u.s. and
following world war ii a cold war developed between the u.s. and
Union of Soviet Socialist Republics
Union of Soviet Socialist Republics