The XYZ Affair of 1798 was a diplomatic dispute between the USA
and France.
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The XYZ affair caused a harsh relationship between France and
the US.
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The XYZ Affair
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The XYZ Affair was a political and diplomatic episode in 1797 and 1798, early in the presidency of John Adams, involving a confrontation between the United States and Republican France that led to the Quasi-War.