U.S. House Speaker Pelosi cautions Britain over Northern Irish peace deal

U.S. House Speaker Nancy Pelosi speaks on "state of American democracy" during an event at Chatham House in London, Britain September 17, 2021. REUTERS/Tom Nicholson

LONDON (Reuters) - U.S. House of Representatives Speaker Nancy Pelosi cautioned Britain on Friday that if the Northern Irish peace deal was destroyed then there would be no post-Brexit trade deal with the United States.

The United States has expressed grave concern that a row between London and Brussels over the implementation of the 2020 Brexit treaty could undermine the Good Friday accord, which effectively ended three decades of violence.