Ireland's premier is marking 250 years of United States independence during a visit to Philadelphia.Taoiseach Micheal Martin's visit to the Pennsylvanian city comes as part of the annual visit by Ireland's leader to the US for St Patrick's Day, which will include a meeting with President Donald Trump at the White House.

Ireland's premier is marking 250 years of United States independence during a visit to Philadelphia.Taoiseach Micheal Martin's visit to the Pennsylvanian city comes as part of the annual visit by Ireland's leader to the US for St Patrick's Day, which will include a meeting with President Donald Trump at the White House.