Irish diplomatic history with Russia has been a complex story.
It was the Soviet Union that vetoed Irish membership to the United Nations, a power it yielded for almost a decade, but diplomatic hostility was a two-way street as Ireland did not formally recognise the USSR until the 1970s.
Earlier than this, there seemed to be some collaboration in the days before independence.
Donal Fallon joined Gavan for another episode of Hidden Histories to discuss.
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