In May 1778, Burke supported a parliamentary motion revising restrictions on Irish trade. His constituents, citizens of the great trading city of Bristol, however urged Burke to oppose free trade with Ireland. Burke resisted their protestations and said: "If, from this conduct, I shall forfeit their suffrages at an ensuing election, it will stand on record an example to future representatives of the Commons of England, that one man at least had dared to resist the desires of his constituents when his judgment assured him they were wrong".

What country did Burke propose restricting trade with?