The Battle of Falmouth (also known as the Battle of Fort Loyal) (May 16–20, 1690) involved Joseph-François Hertel de la Fresnière and Baron de St Castin leading troops as well as the Wabanaki Confederacy (Mi'kmaq and Maliseet from Fort Meductic) in New Brunswick to capture and destroy Fort Loyal and the English settlement on the Falmouth neck (site of present-day Portland, Maine), then part of the Massachusetts Bay Colony.

The community's buildings were burned, including the wooden stockade fort, and its people were either killed or taken prisoner.

[6] The earliest garrison at Falmouth was Fort Loyal (1678) in what was then the center of town, the foot of India Street.

[8] Hertel was chosen by Governor Frontenac to lead an expedition in 1690 that successfully raided Salmon Falls on the Maine-New Hampshire border, and then moved on to destroy Fort Loyal on Falmouth Neck (site of present-day Portland, Maine).

Eventually two hundred were murdered and left in a large heap a few paces from what is now the south end of India Street.

[14] Two Mi'kmaq families whose friends were killed by New England fishermen travelled many miles to avenge themselves on the captives.