The Aroostook War

The origins of the border dispute traced back to ambiguous phrasing in the 1783 Treaty of Paris defining the highlands border, which left sovereignty unsettled across the upper Saint John River valley. By the 1820s, competition was surging between American and provincial lumbermen harvesting valuable white pine timber along the Aroostook, Allagash, and Saint John river watersheds. King William of the Netherlands proposed an international compromise boundary along the Saint John and Saint Francis rivers in 1831, but the United States Senate rejected it largely due to fierce opposition from the State of Maine. Tensions sharpened when a census agent sent to enumerate inhabitants along the Saint John River at Madawaska in 1837 was arrested by British authorities and taken to New Brunswick. In late 1838 near Caribou, armed Maine lumbermen confronted New Brunswick lumberjacks; the tense standoff produced gunfire when Canadians shot an attacking black bear, after which both sides dispersed without human combat casualties.

Events escalated rapidly in early 1839, when the Maine Legislature directed Land Agent Rufus McIntire to assemble an armed civil posse and arrest timber trespassers. Sheriff Hastings Strickland traveled up the frozen Aroostook River by sleigh in February to assist McIntire in stopping illegal timber operations. Soon after, McIntire was captured in a home at Fort Fairfield by New Brunswickers. In response, volunteer forces encamped along the Aroostook River to build fortifications to secure the valley, while Ivory Hardison drove a span of horses hauling a wagonload of soldiers northward. On March 5, 1839, Isaac Hodsdon issued orders directing troops to northern Maine to restore order, and the Maine Legislature formally created Aroostook County to reinforce the state's jurisdiction. In Houlton, federal troops stationed at Hancock Barracks on Garrison Hill were tasked with maintaining peace and restraining the Maine militia. Negotiations averted armed military conflict, and during April and May 1839, militia troops were withdrawn, mustered out, and sent home.

The northern frontier solidified as members of a civil posse commanded by Captain Nye and Captain Stover Rines constructed an outpost of square-hewn cedar logs at the confluence of the Fish and Saint John rivers. Named Fort Kent in honor of Maine Governor Edward Kent, who aggressively advocated for Maine's territorial claims, the post formed the nucleus around which the town of Fort Kent later grew. To the south, the town of Fort Fairfield developed around the works named for Maine Governor John Fairfield, built to keep disputed timber from reaching New Brunswick. The entire border controversy known as the Aroostook War in Aroostook County ended permanently without a battle in 1842 through the Webster-Ashburton Treaty, with an iron obelisk erected in August 1843 at the headwaters of Monument Brook marking the agreed line.

Today, the heritage of the conflict remains visible across northern Maine. Fort Kent State Historic Site preserves the two-story cedar log Fort Kent Blockhouse as a museum and National Historic Landmark, recognized as the only surviving original American fortification from the conflict. In Fort Fairfield, a reconstructed 1976 blockhouse museum maintained by the Frontier Heritage Historical Society features artifacts, documents, and historical presentations explaining the dispute's origins. In Houlton, the Soldiers Cemetery on White Settlement Road holds the graves of soldiers who died while on duty at Hancock Barracks, and Presque Isle's Maysville Museum features a permanent cornerstone exhibit exploring the conflict's local impact.