This is a list of wars involving Germany from 843. It includes East Francia (Kingdom of Germany), Holy Roman Empire, Confederation of the Rhine, the German Confederation, the North German Confederation, the German Empire, the Weimar Republic, Nazi Germany, the German Democratic Republic (DDR, "East Germany") and the present Federal Republic of Germany (BRD, until German reunification in 1990 known as "West Germany").
*e.g. result unknown or indecisive/inconclusive, result of internal conflict inside Germany, status quo ante bellum, or a treaty or peace without a clear result.
Kingdom of Germany (843–962) Conflict Belligerents Outcome King Germany & allies Opposition Viking raids in the Rhineland (843–885) Carolingian Empire Kingdom of Germany Vikings Victory Louis the German Battle of Andernach (876) Kingdom of Germany West Francia Victory Louis the Younger Siege of Paris (885-886) Carolingian Empire Kingdom of Germany West Francia Vikings Victory Charles the Fat Battle of Leuven (891) Kingdom of Germany Vikings Victory Arnulf of Carinthia Battle of Pressburg (907) Kingdom of Germany Principality of Hungary Defeat Louis the Child Battle of Eisenach (908) Kingdom of Germany Principality of Hungary Defeat Louis the Child Battle of Rednitz (910) Kingdom of Germany Principality of Hungary Defeat Louis the Child Battle of Lechfeld (910) Kingdom of Germany Principality of Hungary Defeat Louis the Child Battle of the Inn (913) Kingdom of Germany Duchy of Bavaria Duchy of Swabia Principality of Hungary Victory Conrad I of Germany Battle of Püchen (919) Kingdom of Germany Principality of Hungary Defeat Henry the Fowler Siege of Gana (929) Kingdom of Germany Glomacze Victory Henry the Fowler Battle of Lenzen (929) Kingdom of Germany Duchy of Saxony RedariiLinonen Victory Henry the Fowler Battle of Riade (933) Kingdom of Germany Principality of Hungary Victory Henry the Fowler German–Bohemian War(935–950) Kingdom of Germany Duchy of Bohemia VictoryOtto I Battle of Birten (939) Kingdom of GermanyDuchy of Lotharingia Victory Otto I Battle of Andernach (939) Kingdom of Germany Duchy of FranconiaDuchy of Lotharingia Victory Rebellion crushedOtto I Battle of Wels (943) Kingdom of Germany Duchy of Bavaria Principality of Hungary VictoryOtto I First Italian Expedition of Otto I(951–952) Kingdom of Germany Kingdom of Lombardy Victory Otto gets crowned King of the LombardsOtto I Battle on the Raxa (955) Kingdom of GermanyObotrites, Veleti, and allied Slavs VictoryOtto I Battle of Lechfeld (955) Kingdom of Germany Principality of Hungary Victory End of Magyar invasions in EuropeOtto I Second Italian Expedition of Otto I(960–962) Kingdom of Germany Kingdom of Italy Victory Formation of the Holy Roman EmpireOtto I
Holy Roman Empire (962–1806) Conflict Belligerents Outcome EmperorHoly Roman Empire & alliesOppositionOtto I's raid on Poland (963) Holy Roman Empire Duchy of Poland VictoryOtto IRebellion of Harald Bluetooth (974) Holy Roman Empire Norwegian Rebels Kingdom of Denmark Kingdom of Norway VictoryOtto IIOlaf Tryggvason's raid on Saksland Holy Roman Empire Norwegian vikings DefeatOtto IIFranco-German War of 978–980 Holy Roman EmpireWest Francia DefeatOtto IIOtto II's raid on Poland (979) Holy Roman Empire Civitas Schinesghe DefeatOtto II Battle of Stilo (982) Holy Roman Empire Fatimid Caliphate Emirate of Sicily DefeatOtto IISlavic revolt of 983 Holy Roman EmpireWends Lutici
Obotrite DefeatOtto IIPolish-Saxon Invasion of Veleti (985) Duchy of Poland Holy Roman EmpireVeleti VictoryOtto IIIPolish–Bohemian War (990) Duchy of Poland Holy Roman Empire Duchy of Bohemia VictoryOtto III Polish-German invasion of Veleti (992) Duchy of Poland Holy Roman EmpireVeleti VictoryOtto III Polish-German invasion of Obotrites (995) Duchy of Poland Holy Roman EmpireObotritesVictoryOtto IIIGerman–Polish War (1003–1018) Holy Roman Empire Duchy of Poland Defeat (Peace of Bautzen) Poland is granted control over Lusatia and Upper LusatiaHenry IIBolesław I's intervention in the Kievan succession crisis (1015–1019) Duchy of Poland Kingdom of Hungary Holy Roman EmpirePechenegsKievan Rus Victory Temporary victory for Sviatopolk and Boleslaw Polish sack of Kiev Henry IIGerman–Polish War (1028–1031)Holy Roman Empire Kingdom of Poland Kingdom of Hungary VictoryConrad II German–Hungarian War (1030–1031)Holy Roman Empire Kingdom of Hungary Defeat The Hungarians occupied ViennaConrad II German-Hungarian Wars (1042–1043)Holy Roman Empire Kingdom of Hungary VictoryHenry III Henry III's military campaign against Hungary (1044) Holy Roman Empire Peter Orseolo and his allies The army of King Samuel Aba Victory Defeat of Samuel Aba, restoration of PeterHenry IIIWar between King Peter and Prince Andrew (1046) King Peter's army Holy Roman Empire Prince Andrew's army Kievan Rus' DefeatHenry III Emperor Henry III's military campaigns against Hungary
Siege of Pozsony Battle of Vertes
(1051–1052) Holy Roman Empire Duchy of BohemiaKingdom of Hungary DefeatHenry III German-Hungarian border War (1056–1058) Holy Roman Empire Kingdom of HungaryStalemate Treaty of Marchfeld Henry IV Civil War between King Andrew I and his brother, Prince Bela (1060) King Andrew I's army Holy Roman Empire Prince Béla's army Kingdom of Poland Defeat Henry IVGerman invasion of Hungary (1063) Holy Roman Empire Duchy of Bavaria Kingdom of Hungary Victory Death of Béla I Ascension of Solomon to the Hungarian throneHenry IVSaxon revolt of 1073–1075 Holy Roman Empire Duchy of Saxony Victory Rebellion suppressedHenry IVSaxon revolt of 1077–1088 Holy Roman Empire German rebels Duchy of Saxony Duchy of Bavaria County of Luxembourg VictoryHenry IVGerman-Flemish war Holy Roman EmpireCounty of Flanders Status quo ante bellumHenry VHenry V's expedition to Poland (1109) Holy Roman Empire Duchy of Bohemia Kingdom of Poland DefeatHenry V War of Bohemian Succession (1125–1126) Holy Roman Empire Duchy of Bohemia DefeatLothair IIIWars of the Guelphs and Ghibellines (1125–1186) (1216–1392) Ghibellines
|style="background:#efefef" | Guelphs
| style="background:#E0D0FF" | 1st phase:Peace of Constance (1186) 2nd phase:Stalemate (1392)
Decline of free communes;rise of signorie Diffusion of Black Death Extinction of Hohenstaufen dynasty Conquest of the Kingdom of Sicily by Charles of Anjou Interregnum after Frederick II's death Weakening of Imperial Authority over Italy |style="background:#efefef" |Frederick I Barbarossa
Frederick II
Henry VII
Louis IV |- |style="background:#efefef" |Wendish Crusade (1147) |style="background:#efefef" | |style="background:#efefef" | | style="background:#D0FFD0" | Victory March of Brandenburg reconquers Havelberg, County of Holstein expels its Wends |style="background:#efefef" |Conrad III of Germany |- |style="background:#efefef" |Second Crusade (1147–1150) |style="background:#efefef" | Other Crusaders |style="background:#efefef" |Emirate of Damascus other Muslim and Pagan entities in East Central Europe, Iberia and the Near East. | style="background:#E0D0FF" | Indecisive Victories in East Central Europe and Iberia. Defeat in the Holy Land. |style="background:#efefef" |Conrad III of Germany |- |style="background:#efefef" |Frederick I's expedition to Głogów (1157) |style="background:#efefef" | Holy Roman Empire Duchy of Bohemia |style="background:#efefef" | Kingdom of Poland Cumania Old Prussians | style="background:#D0FFD0" | Victory|style="background:#efefef" |Frederick I Barbarossa |- |style="background:#efefef" |Third Crusade (1189–1192) |style="background:#efefef" | Other Crusaders |style="background:#efefef" |Ayyubids | style="background:#D0FFD0" | Victory|style="background:#efefef" |Frederick I Barbarossa |- |style="background:#efefef" |Henry VI's conquest of Sicily (1194) |style="background:#efefef" | Holy Roman Empire |style="background:#efefef" | | style="background:#D0FFD0" | Victory Kingdom of Sicily added to Henry VI's Personal Union |style="background:#efefef" |Henry VI |- |style="background:#efefef" |Crusade of 1197 |style="background:#efefef" | Holy Roman Empire |style="background:#efefef" | Ayyubid Sultanate | style="background:#D0FFD0" | Victory Beirut restored to the Kingdom of Jerusalem |style="background:#efefef" |Henry VI |- |style="background:#efefef" |Fourth Crusade (1202–1204) |style="background:#efefef" | Crusaders from:
|style="background:#efefef" | In Europe: | style="background:#D0FFD0" | Victory''' |style="background:#efefef" |Otto IV |- |style="background:#efefef" |Prussian Crusade (1217–1274) |style="background:#efefef" | Other Crusaders |style="background:#efefef" | Baltic pagans: Prussians Bartians Galindians Natangians Nadruvians Pomesanians Pogesanians Sambians Warmians Yotvingians (Sudovians) Skalvians Allies of Prussians: Grand Duchy of Lithuania Duchy of Pomerania | style="background:#D0FFD0" | Victory Teutonic Knights gain control of Prussia |style="background:#efefef" |Frederick II |- | style="background:#efefef" |Anglo-French War (1213–1214) | style="background:#efefef" | Angevin Empire Kingdom of England County of Anjou Duchy of Normandy Duchy of Aquitaine Holy Roman Empire
County of Flanders County of Boulogne | style="background:#efefef" | Kingdom of France | style="background:#FFD0D0" | Defeat Collapse of the Angevin Empire | style="background:#efefef" |Otto IV |- |style="background:#efefef" |Fifth Crusade (1217–1221) |style="background:#efefef" | Crusaders:
Kingdom of Portugal
Levant: Kingdom of Jerusalem Kingdom of Cyprus Latin Empire Military orders: Knights Templar Teutonic Order Knights Hospitaller |style="background:#efefef" | Muslim forces: Ayyubids |style="background:#FFD0D0"| Defeat |style="background:#efefef" |Frederick II |- |style="background:#efefef" |Sixth Crusade (1227–1229) |style="background:#efefef" | including in Personal Union:
|style="background:#efefef" |Ayyubids | style="background:#D0FFD0" | Victory Crusaders regain Jerusalem |style="background:#efefef" |Frederick II |- | style="background:#efefef" | War of the Keys (1228–1230) |style="background:#efefef" |
|style="background:#efefef" | Papal States Lombard League |style="background:#D0FFD0"| Victory |style="background:#efefef" | Frederick II |- |style="background:#efefef" | War of the Lombards (1228–1243) |style="background:#efefef" | Holy Roman Empire Pro-Imperial faction in the Kingdom of Jerusalem Tyre Jerusalem Principality of Antioch and County of Tripoli Republic of Pisa Knights Hospitaller Teutonic Knights |style="background:#efefef" | Kingdom of Cyprus Anti-Imperial faction in the Kingdom of Jerusalem Acre Beirut Arsuf Caesarea Republic of Genoa Knights Templar Papacy | style="background:#FFD0D0" | Defeat |style="background:#efefef" |Frederick II |- | style="background:#efefef" |Mongol incursions in the Holy Roman Empire (1241–1242) | style="background:#efefef" | | style="background:#efefef" | Golden Horde | style="background:#D0FFD0" | Victory | style="background:#efefef" |Frederick II |- |style="background:#efefef" | Great Interregnum (1245/50–1273/5) |style="background:#efefef" | Hohenstaufen party Frederick II (1245–50) Conrad IV (1245–54) Alfonso X of Castile (1257–75) Rudolf of Habsburg (1273–5) |style="background:#efefef" | Welf party Henry of Thuringia (1246–7) William II of Holland (1247–56) Richard of Cornwall (1257–72) Ottokar II of Bohemia | style="background:#E0D0FF" | Compromise Unanimous election of Rudolf of Habsburg in 1273 Alfonso X of Castile renounced claim in 1275 |style="background:#efefef" | ? |- |style="background:#efefef" | War for the German Crown (1322) |style="background:#efefef" | Kingdom of Germany Duchy of Bavaria |style="background:#efefef" | Duchy of Austria |style="background:#D0FFD0" | Victory Capture of Frederick of Habsburg |style="background:#efefef" |Louis IV |- | style="background:#efefef" |Hussite Wars (1419–1434)