Answer
XYZ Affair: Gerry was involved in the XYZ Affair, a diplomatic incident that occurred in 1797-1798 between the United States and France. French agents, known as X, Y, and Z, demanded bribes from American diplomats in exchange for ending hostilities against American ships. Gerry, along with John Marshall and Charles Cotesworth Pinckney, was sent to France to negotiate, but the talks failed due to the French demands.