This is an incomplete list of military confrontations that have occurred within the boundaries of the modern US State of Ohio since European contact. The region was part of New France from 1679–1763, ruled by Great Britain from 1763–1783, and part of the United States of America 1783–present.

Several wars that have directly affected the region including the French and Indian War (1754–1763), American Revolutionary War (1775–1783), Northwest Indian War (1785–1795), Tecumseh's War (1811–1812), War of 1812 (1812–1814), and the American Civil War (1860–1865).

Battles

NameDateLocationWarCampaignDeadBelligerentsFort SanduskyMay 16, 1763disputedThe exact location of the fort is variously given as somewhere in modern Ottawa County, Sandusky County, and Erie County. The Ohio Historical Society and the Erie County Historical Society erected a memorial marker at Sandusky in 1979.Pontiac's Rebellion15+The garrison consisted of 15 soldiers and their commander. Several British traders were present and killed at the fort during the raid.Wyandot vs Kingdom of Great BritainSiege of Fort LaurensFebruary 22 - March 20, 1779near modern Bolivar, OhioAmerican Revolutionary WarWestern theater17+Kingdom of Great Britain & Native alliesSpecifically, Wyandot, Mingo, Munsee & Delaware vs. United States of AmericaSpecifically, 150 men from the 8th Pennsylvania Regiment and the 13th Virginia Regiment.Battle of ChillicotheMay 1779present-day Xenia Township, Greene County, Ohio American Revolutionary WarWestern theaterunknownVarious sources record 8-10 casualties among the militia, but do not state whether these were killed, wounded, or both; additionally, Shawnee casualties are unknown.Kentucky militia vs ShawneeBattle of PiquaAugust 8, 1780Bethel Township, Clark County, OhioAmerican Revolutionary WarWestern theater50+ Killed 43+ woundedUnited States of America vs. Shawnee and alliesGnadenhutten massacreMarch 8, 1782Gnadenhutten, OhioAmerican Revolutionary WarWestern theater9628 men, 29 women, and 39 children.Pennsylvania militia vs Christian LenapeLogan's RaidOctober 1786near modern Springfield, OhioNorthwest Indian War11Shawnee vs Kentucky militiaBig Bottom massacreJanuary 2, 1791near modern Stockport, OhioNorthwest Indian War12Lenape & Wyandot vs Ohio settlersSiege of Dunlap's StationJanuary 8–11, 1791near modern Dunlap, OhioNorthwest Indian War2Native AmericansLed by Simon Girty. vs Ohio settlersSt. Clair's DefeatNovember 4, 1791near modern Fort Recovery, OhioNorthwest Indian War893+Western Confederacy vs United States of AmericaAttack on Fort St. ClairNovember 9, 1792modern Preble CountyNorthwest Indian War10+Miami vs Kentucky militiaSiege of Fort RecoveryJune 30-July 1, 1794modern Fort Recovery, OhioNorthwest Indian War43+Western Confederacy vs United States of AmericaBattle of Fallen TimbersAugust 20, 1794near modern Maumee, OhioNorthwest Indian War77Native American losses are given from 19 up to 40.Western Confederacy vs United States of AmericaBattle of Marblehead PeninsulaSeptember 29, 1812modern Marblehead, OhioWar of 1812The Battle of Marblehead Peninsula (more accurately referred to as a skirmish), is often cited as the first conflict on land in the War of 1812. However, this is incorrect.48Tecumseh's confederacy vs United States citizensSiege of Fort MeigsApril 28 - May 9, 1813modern Perrysburg, OhioWar of 1812174+This figure does not include Indian numbers, which are recorded as 19 killed and wounded.United Kingdom & Native Americans vs United States of AmericaBattle of Fort StephensonAugust 2, 1813modern Sandusky County, OhioWar of 181227United Kingdom & Tecumseh's confederacy vs United States of AmericaBattle of Put-in-BaySeptember 10, 1813Lake Erie near modern Put-in-Bay, OhioWar of 181268United Kingdom vs United States of AmericaBattle of Buffington IslandJuly 19, 1863Portland, Ohio / Buffington Island American Civil WarMorgan's Raid (1863)77United States of America vs Confederate States of AmericaBattle of SalinevilleJuly 26, 1863near Salineville, OhioAmerican Civil WarMorgan's Raid (1863)United States of America vs Confederate States of AmericaCincinnati Courthouse riotsMarch 28–30, 1884Cincinnati, OhioProtest of a jury case56Citizen mob vs Cincinnati Police, 1st Ohio Militia, Dayton militia & Columbus militia

See also

History of Ohio Ohio in the American Civil War

Notes