This is an incomplete list of all military confrontations that have occurred within the boundaries of the modern U.S. state of Missouri since European contact.
NameDateLocationWarStrengthCasualtiesBelligerentsVictorRef.St. LouisMay 25, 1780St. LouisAmerican Revolutionary WarSpain-320, Great Britain-~1,500108Spain vs. Great Britain & Indian tribesSpanish victorySink HoleMay 24, 1815Lincoln CountyWar of 1812?8Sauk vs. United StatesUnited States victoryBattle CreekJuly 1829Schuyler CountyAmerican Indian Wars??Iowa vs. American settlersUnited States victoryGallatinAugust 6, 1838GallatinMissouri Mormon WarMormon-?, Missouri Citizens-200?Latter-Day Saints vs. Missouri citizensCitizens victoryCrooked RiverOctober 28, 1838Crooked RiverMissouri Mormon WarMormon-?, Missouri State Militia-1 division4Latter-Day Saints vs. Missouri State MilitiaLatter-Day Saints victoryHaun's MillOctober 30, 1838Caldwell CountyMissouri Mormon WarMormon-?, Missouri State Militia-24021Latter-Day Saints vs. Missouri State MilitiaMissouri victory1st BoonvilleJune 17, 1861BoonvilleAmerican Civil WarUnion-1,700, Missouri State Guard-~1,50010 KIA, 17 WIA, 80 POWUnited States vs. Missouri (Confederate)Union victoryCole CampJune 19, 1861Benton CountyAmerican Civil WarBenton County Home Guard-600, Missouri State Guard-30043 KIA, 85 WIA, 25 POWUnited States vs. Missouri (Confederate)Confederate victoryCarthageJuly 5, 1861Near CarthageAmerican Civil WarUnion-1,100, Missouri State Guard-6,000244United States vs. Missouri (Confederate)Confederate victoryDug SpringsAugust 2, 1861Near CleverAmerican Civil War?48 KIA, 74 WIAUnited States vs. Missouri (Confederate)Union victoryAthensAugust 5, 1861Clark CountyAmerican Civil WarHome Guard-333-500, Missouri State Guard-~2,000 men plus 3 cannon3 KIA, 20 WIA, 31 KIA & WIAUnited States vs. Missouri (Confederate)Union victoryWilson's CreekAugust 10, 1861Christian and Greene countiesAmerican Civil WarUnion-5,430, Missouri State Guard-12,120535 KIA, 1808 WIA, 196 MIAUnited States vs. Missouri (Confederate)Confederate victoryCharlestonAugust 19, 1861CharlestonAmerican Civil WarUnion-250, Confederate-500?United States vs. Confederate StatesUnion victoryDry Wood CreekSeptember 2, 1861Vernon CountyAmerican Civil WarUnion-600, Missouri State Guard-?18 KIA, 16 WIAUnited States vs. Missouri (Confederate)Confederate victory2nd BoonvilleSeptember 13, 1861BoonvilleAmerican Civil WarBoonville Home Guardsmen-140, Missouri State Guard-800United States vs. Missouri (Confederate)Union victory1st LexingtonSeptember 13–20, 1861LexingtonAmerican Civil WarLexington Garrison-3,500 Missouri State Guard-15,000800 KIA, 1,000 POWUnited States vs. Missouri (Confederate)Confederate victoryBlue Mills LandingSeptember 17, 1861Clay CountyAmerican Civil WarUnion-600, Missouri State Guard-3,500126United States vs. Missouri (Confederate)Confederate victoryFredericktownOctober 21, 1861Madison CountyAmerican Civil WarUnion-2,500, Confederacy-?25 KIA, 40 WIA, 80 POWUnited States vs. Confederate StatesUnion victory1st SpringfieldOctober 25, 1861SpringfieldAmerican Civil WarUnion-326 Confederacy-1,500218United States vs. Confederate StatesUnion victoryBelmontNovember 7, 1861Mississippi CountyAmerican Civil WarUnion-3,114, Confederacy-~ 5,000225 KIA, 727 WIA, 221 POW/MIAUnited States vs. Confederate StatesIndecisiveBlackwater CreekDecember 19, 1861Johnson CountyAmerican Civil WarUnion-4,000, Confederacy-750694United States vs. Confederate StatesUnion victoryMount Zion ChurchDecember 28, 1861Boone CountyAmerican Civil WarUnion-440, Confederacy-~ 90027 KIA, 213 WIA, 64 POWUnited States vs. Confederate StatesUnion victoryRoan's Tan YardJanuary 8, 1862Randolph CountyAmerican Civil WarUnion-450, Confederacy-80046 KIA, 99 WIA, 28 POWUnited States vs. Confederate StatesUnion victoryNew MadridFebruary 28, 1862 – April 8, 1862New MadridAmerican Civil WarUnion-6 gunboats 11 mortar rafts, Confederacy-~ 7,00053 KIA, 50 WIA, 5 MIA, 7,000 POWUnited States vs. Confederate StatesUnion victoryMoore's MillJuly 28, 1862Callaway CountyAmerican Civil WarUnion-733, Confederacy-260-35013 KIA, 55 WIA, 202 KIA/WIAUnited States vs. Confederate StatesUnion victoryCravensvilleAugust 5, 1862Daviess CountyAmerican Civil WarUnion-35, Confederacy-85Union 5 wounded Confederates 8 killed 10 woundedUnited States vs. Confederate StatesUnion victoryKirksvilleAugust 6, 1862Adair CountyAmerican Civil WarUnion-1,000, Confederacy-2,500456United States vs. Confederate StatesUnion victoryCompton's FerryAugust 11, 1862Livingston CountyAmerican Civil WarUnion-?, Confederacy-~ 1,500?United States vs. Confederate StatesUnion victoryIndependenceAugust 11, 1862IndependenceAmerican Civil WarUnion-344, Confederacy-~800344United States vs. Confederate StatesConfederate victoryYellow CreekAugust 13, 1862Chariton CountyAmerican Civil WarUnion-~700, Confederacy-Unknown2 WIA, Confederate-?United States vs. Confederate StatesUnion victoryLone JackAugust 15–16, 1862Jackson CountyAmerican Civil WarUnion-800, Confederacy-1,500-3,000270United States vs. Confederate StatesConfederate victory1st NewtoniaSeptember 30, 1862NewtoniaAmerican Civil WarUnion-1,500 Confederacy-1 brigade345United States vs. Confederate StatesConfederate victoryIsland MoundOctober 29, 1862Bates CountyAmerican Civil WarUnion-250, Confederacy-35019United States vs. Confederate StatesUnion victoryClark's MillNovember 7, 1862Douglas CountyAmerican Civil WarUnion-113, Confederacy-1,000113United States vs. Confederate StatesConfederate victory2nd SpringfieldJanuary 8, 1863SpringfieldAmerican Civil WarUnion-2,099, Confederacy-1,870521United States vs. Confederate StatesUnion victoryHartvilleJanuary 9–11, 1863Wright CountyAmerican Civil WarUnion-750, Confederacy- ?19 KIA, 160 WIA, 10 MIA/POWUnited States vs. Confederate StatesIndecisive Cape GirardeauApril 26, 1863Cape Girardeau CountyAmerican Civil WarUnion-4,000, Confederacy- 5,000337United States vs. Confederate StatesUnion victoryChalk BluffMay 1–2, 1863Dunklin CountyAmerican Civil WarUnion-120, Confederacy- 21053 KIA, 104 WIA, 120 MIA, 53 POWUnited States vs. Confederate StatesConfederate pyrrhic victory3rd BoonvilleOctober 11, 1863BoonvilleAmerican Civil War??United States vs. Confederate StatesUnion victoryCamden PointJuly 13, 1864Camden PointAmerican Civil WarUnion-1,000, Confederacy- 3006 KIA, 25 WIAUnited States vs. Confederate StatesUnion victoryFort DavidsonSeptember 27, 1864Iron CountyAmerican Civil WarUnion-1,500, Confederacy- 12,0001,684United States vs. Confederate StatesUnion victory4th BoonvilleOctober 11, 1864BoonvilleAmerican Civil War??United States vs. Missouri (Confederate)Confederate victoryGlasgowOctober 15, 1864GlasgowAmerican Civil WarUnion-800, Confederacy-1,800450United States vs. Confederate StatesConfederate victorySedaliaOctober 15, 1864SedaliaAmerican Civil WarUnion-~800, Confederacy-~1,2001United States vs. Confederate StatesConfederate victory2nd LexingtonOctober 19, 1864LexingtonAmerican Civil WarUnion-2,000 Confederacy-8,500?United States vs. Confederate StatesConfederate victoryLittle BlueOctober 21, 1864Jackson CountyAmerican Civil WarUnion-2,500, Confederacy- 8,500?United States vs. Confederate StatesConfederate victoryIndependenceOctober 21–22, 1864IndependenceAmerican Civil WarUnion-22,000, Confederacy-8,500140United States vs. Confederate StatesConfederate victoryBig BlueOctober 22–23, 1864Kansas CityAmerican Civil WarUnion-2 divisions, Confederacy-2 divisions?United States vs. Confederate StatesUnion victoryWestportOctober 23, 1864WestportAmerican Civil WarUnion-22,000, Confederacy- 8,5003,000United States vs. Confederate StatesUnion victoryCharlotOctober 25, 1864Vernon CountyAmerican Civil WarUnion-2 brigades, Confederacy- 1 division?United States vs. Confederate StatesUnion victory2nd NewtoniaOctober 28, 1864NewtoniaAmerican Civil WarUnion-? Confederacy-?650United States vs. Confederate StatesUnion victory
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References