The Aroostook War was a conflict that took place in what is today northeast Maine.
During the Colonial Era, the British Empire found value in the region for its timber supply. A steady supply of strong timber was vital to the growth of the British Royal Navy. This supply was threatened as the Treaty of Paris was signed ending the Revolutionary war.
The British lost control of the American colonies but remained in control of New Brunswick, while Maine remained part of Massachusetts.
However, the treaty did not clarify who had rights to the vast forests to the Northeast that were sought after by both sides. Those in New Brunswick claimed the territorial divide was at the Penobscot River while Maine rejected that and claimed it was at the St. John River farther east.
Tensions rose through the years, which saw timber thefts and political unrest.
Finally, in 1842 peace was accomplished and a boundary was agreed upon. Maine was about to retain around 65 percent of the disputed lands as well as rights to the St. John river.
(Vintage Photo Credit: Collections of Maine Historical Society, courtesy of VintageMaineImages.com. Item #4194, 6316, 1489, 17560, 6643)