US ResearchConflictsColonial and Pre-ColumbianSiege of Casco (Portland, ME, 1703)
Colonial and Pre-Columbian

Siege of Casco (Portland, ME, 1703)

1703
Maine
Era
Colonial and Pre-Columbian
Year
1703
Location
Maine
Status
Historical record
The Combatants

Who Fought

Forces
Not recorded in historical accounts
Forces
English colonial settlements: unknown strength
VS
Victor
French
Forces
French and Wabanaki forces: 500 troops composed of French colonial forces and the Wabanaki Confederacy of Acadia (200 Mi'kmaq and others from Norridgewock) under Alexandre Leneuf de La Vallière de Beaubassin
Outcome
English colonists protected some settlements, but numerous others were destroyed and abandoned. The campaign inflicted severe damage on the English colonial presence, with more than 15 leagues burned and more than 150 people killed or captured.
The Battle

History & Significance

The Northeast Coast campaign of 1703 occurred within a broader context of territorial dispute between French Acadia and English New England. Following inconclusive battles during King William's War in the 1690s, the border region remained contested, with New France claiming the Kennebec River in southern Maine as Acadia's western boundary while English colonists disputed this claim. The campaign represented the first major French offensive of Queen Anne's War in New England, demonstrating France's intention to reassert control over the contested frontier.

Alexandre Leneuf de La Vallière de Beaubassin commanded a force of approximately 500 troops, comprising French colonial forces and allied Indigenous warriors from the Wabanaki Confederacy of Acadia, including 200 Mi'kmaq and others from Norridgewock. Between 10 August and 6 October 1703, this force systematically attacked English settlements along the coast of present-day Maine, spanning the region between Wells and Casco Bay, now the Portland, Maine area. The campaign earned the alternate designation "Six Terrible Days" and involved the destruction of settlements through burning and violence.

The campaign inflicted severe damage on the English colonial presence in Maine. The French and their Indigenous allies burned more than 15 leagues of New England territory and killed or captured more than 150 people. While English colonists successfully defended some settlements, numerous others were destroyed and abandoned as a result of the assault. Historian Samuel Drake characterized the campaign's impact with the observation that "Maine had nearly received her death-blow," underscoring the severity of the offensive and its near-catastrophic effect on English colonial settlement in the region.

Historical context

European colonization of North America accelerated after 1600, with England, France, Spain, and the Netherlands establishing competing settlements along the Atlantic coast, the St. Lawrence River, the Gulf of Mexico, and the Mississippi Valley. The first permanent English settlement at Jamestown, Virginia (1607) struggled with starvation and conflict; the Plymouth colony (1620) and the Massachusetts Bay Colony (1630) followed. By the mid-1700s, thirteen English colonies stretched along the Atlantic seaboard, governed through a mix of royal charters, proprietary grants, and elected assemblies. The colonial economy depended on tobacco in Virginia and Maryland, rice and indigo in the Carolinas, and maritime trade in New England — all increasingly reliant on enslaved African labor after 1619. Conflict with Indigenous peoples over land was continuous, punctuated by major wars including King Philip's War (1675–1676) in New England and the Yamasee War (1715–1717) in the South. The French and Indian War (1754–1763), part of the global Seven Years' War, ended French power in North America and left Britain deeply in debt — triggering the taxation disputes that would lead to revolution.

Casualties & Losses

More than 150 English colonists killed or captured

Questions & Answers

Frequently Asked Questions

When did Siege of Casco (Portland, ME, 1703) take place?
Siege of Casco (Portland, ME, 1703) took place in 1703.
Where was Siege of Casco (Portland, ME, 1703) fought?
Siege of Casco (Portland, ME, 1703) was fought in Maine, United States.
What was the outcome of Siege of Casco (Portland, ME, 1703)?
English colonists protected some settlements, but numerous others were destroyed and abandoned. The campaign inflicted severe damage on the English colonial presence, with more than 15 leagues burned and more than 150 people killed or captured.
What was the significance of Siege of Casco (Portland, ME, 1703)?
The Northeast Coast campaign of 1703 occurred within a broader context of territorial dispute between French Acadia and English New England. Following inconclusive battles during King William's War in the 1690s, the border region remained contested, with New France claiming the Kennebec River in sou
Protected heritage nearby

Historic Sites near Siege of Casco (Portland, ME, 1703)

Chestnut Street Methodist Church
Early Republic · 0.1 mi
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All battles in Maine
Source

Content adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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