New Ireland was a Crown colony of the Kingdom of Great Britain twice established in modern-day Maine after British forces captured the area during the American Revolutionary War and again during the War of 1812. The colony lasted four years during the Revolution, and eight months during the War of 1812. At the end of each war the British ceded the land to the United States under the terms of the Treaty of Paris and the Treaty of Ghent, respectively.

Maine is the easternmost state in the New England region of the Northeastern United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Canadian provinces of New Brunswick and Quebec to the northeast and northwest, respectively. Maine is the largest state in New England by total area. Of the 50 U.S. states, it is the 12th-smallest by area, the 9th-least populous, the 13th-least densely populated, and the most rural. Maine's capital is Augusta, and its most populous city is Portland, with a total population of 68,408, as of the 2020 census.