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. The name derives from the substitution of the letters X, Y, and Z for the names of French diplomats Jean-Conrad Hottinguer (X), Pierre Bellamy (Y), and Lucien Hauteval (Z) in documents released by the Adams administration.
A British political cartoon depicting the affair: The United States is represented by Columbia, who is being plundered by five Frenchmen, three of whom are wearing French cockades, one wearing the Phrygian cap – symbols of revolutionary, republican France. The figures grouped off to the right are other European countries; John Bull, representing Great Britain, stands laughing atop the white cliffs of Dover.