List of wars involving Denmark

This is a list of wars involving the Kingdom of Denmark.

700–1300

Year	War	Belligerents (excluding Denmark)		Outcome
Year	War	Allies	Enemies	Outcome
c.770	Battle of Brávellir	Denmark Wends Eastern Geats	Sweden Estonians Western Geats	Defeat Harald Wartooth's death
793–1066	Viking invasions of England	Norse Vikings	Kingdom of England	Victory (first phase) Establishment of The Danelaw Defeat (second phase) Viking power is broken after The Battle of Stamford Bridge.
810-811	Invasion of Frisia	Danish Kingdom	Francia	Stalemate Treaty of Heiligen Danish border confirmed at The Eider
838	Battle of Hingston Down	Danish Vikings Cornwall	Anglo-Saxons	Defeat Viking Defeat
845	Siege of Paris (845)	Norse Vikings	Francia	Viking victory Viking plunder of Paris
851	Battle of Aclea	Danish Vikings	Kingdom of Wessex	Defeat West-Saxon victory
859	Viking raid on Nekor^[1]^[2]^[3] (ca. 859)	Norse Vikings	Kingdom of Nekor	Viking victory Vikings occupied Nekor for 8 days.
865-878	Great Heathen Army's invasion of England	Norse Vikings Norse–Gaels	Anglo-Saxon kingdoms: Wessex Northumbria Mercia East Anglia Kingdom of Strathclyde Kingdom of Alba	Viking victory Treaty of Wedmore Establishment of Danelaw Failure to Conquer Wessex
866	Battle of Brissarthe	Danish Vikings Brittany	Francia	Viking victory Frankish retreat
880	Battle of Thimeon	Danish Vikings	West Francia	Defeat Viking Defeat
881	Battle of Saucourt-en-Vimeu	Danish Vikings	West Francia	Defeat 9000 Vikings slain Vikings starts Raiding Lotharingia
882	Siege of Asselt	Danish Vikings	East Francia	Defeat Godfrid became a vassal of Charles the Fat and converted to Christianity.
885-886	Siege of Paris (885–886)	Danish Vikings	West Francia	Stalemate Paris successfully defended Vikings granted passage of the Seine and 700 livres (pounds) of silver Vikings raids continued into Burgundy
891	Battle of Leuven (891)	Danish Kingdom	East Francia	Defeat Death of Sigfried and Godfried
899-902	Æthelwold's Revolt	Followers of Æthelwold ætheling Supported by: Danes of Northumbria Kingdom of East Anglia	Followers of Edward the Elder: Wessex Mercia Kent	Defeat Victory for Edward the Elder
911	Siege of Chartres (911)	Danish Vikings	West Francia	Stalemate West Frankish military victory Treaty of Saint-Clair-sur-Epte Rollo is granted lands in northern France in exchange for vassalage, religious conversion and pledge to defend the Seine's estuary from viking raiders
939	Battle of Trans-la-Forêt	Danish Vikings	West Francia Brittany	Defeat Decisive Breton victory
955-961	War between King Haakon the Good and the sons of Eirik Bloodaxe	Sons of Eric Bloodaxe Kingdom of Denmark	Norway	Defeat Harald Greycloak becomes king of Norway.
974-983	Harald Bluetooth's Rebellion against Otto II	Kingdom of Denmark Norwegian vasal Obotrites (983)	Holy Roman Empire	Stalemate Danish sovereignty confirmed
986	Battle of Hjörungavágr	Kingdom of Denmark Jomsvikings	Norway	Defeat Norwegian Victory
986	Battle of Fýrisvellir	Kingdom of Denmark Jomsvikings	Sweden	Defeat Swedish Victory
1000	Battle of Svolder	Kingdom of Denmark Sweden Earldom of Lade	Norway	Allied Victory Partitioning of Norway Backlash against Christianity
1016	Cnut the Great's invasion of England	Kingdom of Denmark	Kingdom of England	Danish victory Personal union formed between Denmark and England in 1018. Following Edmund's death on 30 November, Cnut ascends to the throne as the sole king of England.
1028	Battle of Helgeå	Kingdom of Denmark Kingdom of England	Sweden Norway	Anglo-Danish victory Subjegation of parts of Sweden
1031	Battle of Stiklestad	The "Peasant Army".loyal to Cnut the Great.	Norway	Peasant victory Death of Olaf II of Norway
1043	Battle of Lyrskov Heath	Denmark Norway	Wends	Dano-Norwegian Victory Up to 15.000 Wends killed^[4]
1048-1064	Invasion of Denmark	Denmark	Norway	Stalemate Peace agreement, mutual recognition and Norwegian withdrawal.
1069-1075	Danish attacks on Norman England	Denmark Earl of Northumbria	Norman England	Stalemate Danegeld paid Unsuccessful reconquest of England
1131-1157	Danish Civil War (Civil war)^[5]	Valdemar I of Denmark Canute V of Denmark	Sweyn III of Denmark	Victory Valdemar I is made king of all of Denmark
1144-1147	Wendish Crusade	Denmark Kingdom of Poland Holy Roman Empire	Polabian Slavs West Slavs	Victory
1168 or 1169	Siege of Arkona	Denmark	Rani	Danish Victory Rügen conquered and converted
1201	Battle of Stellau	Denmark	County of Holstein	Danish Victory Holstein Subjegated
1189-1192	Third Crusade	Angevin Empire Kingdom of France Kingdom of Jerusalem Knights Templar Knights Hospitaller Republic of Pisa Kingdom of Sicily Papal States Holy Roman Empire Duchy of Bohemia Armenian Kingdom of Cilicia Kingdom of Denmark Republic of Genoa	Ayyubids Sultanate of Egypt Emirate of Damascus Emirate of Hamah Emirate of Mesopotamia	Crusader Victory Treaty of Jaffa (1192)
1203-1290	Livonian Crusade	Sword-Brothers Livonian Order Denmark Sweden	Indigenous peoples Livonians Latgalians Selonians Estonians Oeselians Curonians Semigallians	Victory Terra Mariana Duchy of Estonia
1227	Danish–German war	Denmark	County of Holstein Hanseatic League	Defeat Holstein regained independence Denmark forced to withdraw from northern Germany.
1240-1242	Livonian campaign against Rus'	Livonian Order Denmark	Novgorod Republic	Defeat
1245	Battle of Embo	Denmark Norway	Kingdom of Scotland	Defeat
1274-1275	The war against Valdemar Birgersson	Denmark Magnus III of Sweden	Sweden	Victory Valdemar, King of Sweden is deposed Magnus Ladulås is crowned king of Sweden
1276-1278	6000-mark war	Denmark	Sweden	Victory Magnus III of Sweden agrees to pay 4000 mark
1289-1295	Danish-Norwegian War	Denmark	Norway Danish outlaws	Defeat North Halland ceded to Kingdom of Norway

1300–1500

Year	War	Belligerents (excluding Denmark)		Outcome
Year	War	Allies	Enemies	Outcome
1304-1310	The Swedish brother's feud	Denmark Birger Magnusson	Norway Duke Eric and Valdemar	Victory Death of Duke Eric and Valdemar.
1343–1345	St. George's Night Uprising	Teutonic Order Livonian Order Denmark	Revala Harria Rotalia Vironia Oeselia	Victory Uprising defeated Denmark sells Duchy of Estonia to the State of the Teutonic Order
1361	Battle of Visby	Denmark	Sweden Hanseatic League	Victory Gotland conquered Visby ransomed
1361-1365	First Danish–Hanseatic War	Denmark	Norway Hanseatic League Sweden	Victory Dissolution of the Anti-Danish Alliance
1392-1398	War with the Victual Brothers	Kalmar Union	Victual Brothers	Victory Formation of the Kalmar Union.
1426-1435	Dano-Hanseatic War	Kalmar Union	House of Schaumburg Hanseatic League	Defeat Treaty of Vordingborg
1497	Battle of Rotebro	Denmark	Sweden	Victory

1500–1699

Year	War	Belligerents (excluding Denmark)		Outcome
Year	War	Allies	Enemies	Outcome
1501–1503	War of Deposition against King Hans	Kalmar Union	Sweden	Defeat Hans, King of Denmark deposed as King of Sweden.
1501–1512	Dano-Swedish War (1501–1512)	Kalmar Union	Sweden Free City of Lübeck (from 1509)	Victory Treaty of Malmö Lübeck and the Hanseatic League stop support for Sweden and agree to pay contribution Sweden agrees further negotiations about a compromise to preserve the union
1512–1520	Dano-Swedish War (1512–1520)	Kalmar Union	Sweden	Victory Danish Victory Danish conquer of Sweden
1521–1523	Swedish War of Liberation	Kalmar Union	Sweden Free City of Lübeck (from 1522)	Defeat Treaty of Malmö Regained Swedish independence Dissolution of Kalmar Union Sweden renounced its claims to Scania and Blekinge.
1534–1536	Count's Feud (civil war)	Christian III Duchy of Schleswig Holstein Sweden Duchy of Prussia Jutland	Christian II Christopher of Oldenburg Free City of Lübeck Skåne Malmø Copenhagen Zealand	Reformation in Denmark–Norway and Holstein
1538-1550	Icelandic Reformation	Denmark Protestants	Catholics	Defeat Termination of the Protestant Church in Iceland.
1558–1583	Livonian War	Livonian Confederation Polish–Lithuanian Commonwealth Denmark–Norway Kingdom of Sweden Zaporozhian Cossacks Principality of Transylvania	Tsardom of Russia Qasim Khanate Kingdom of Livonia	Victory Sweden gains Estonia Livonia, Courland and Semigallia to Poland–Lithuania Denmark–Norway gains Ösel
1563–1570	Northern Seven Years' War	Free City of Lübeck Poland–Lithuania	Sweden	Status quo ante bellum Treaty of Stettin (1570)
1571	Danish attack on Poland Naval battle near Hel	Kingdom of Denmark	Polish–Lithuanian Commonwealth	Victory
1611–1613	Kalmar War	Denmark–Norway	Sweden	Victory Treaty of Knäred (1613)
1618–1648	Thirty Years' War	Protestant States and Allies Sweden Kingdom of France Bohemia Denmark–Norway (1625-1629) Saxony Dutch Republic Electorate of the Palatinate Brunswick-Lüneburg England Scotland Brandenburg-Prussia Transylvania Hungarian Anti-Habsburg Rebels Zaporozhian Cossacks Ottoman Empire	Roman Catholic States and Allies Holy Roman Empire Catholic League Habsburg Monarchy Austria Bavaria Spain and its possessions Denmark–Norway (1643-1645)	Defeat Peace of Westphalia Habsburg supremacy curtailed Rise of the Bourbon dynasty Rise of the Swedish Empire Decentralization of the Holy Roman Empire Franco-Spanish War until 1659 Substantial decline in the power and influence of the Catholic Church
1643–1645	Torstenson War	Denmark–Norway Holy Roman Empire	Sweden Dutch Republic	Defeat Treaty of Brömsebro (1645)
1657–1660	Second Northern War	Habsburg monarchy Poland–Lithuania Russia (1656–58) Brandenburg-Prussia Dutch Republic	Sweden Brandenburg-Prussia Transylvania Ukrainian Cossacks Wallachia Moldavia	Defeat Treaty of Roskilde (February 26, 1658)
1665-1667	Second Anglo-Dutch War	Dutch Republic Denmark–Norway Kingdom of France	Kingdom of England Bishopric of Münster	Victory Treaty of Breda (1667)
1666	Second Swedish War on Bremen	Bremen Electorate of Cologne Brunswick-Lüneburg Denmark–Norway Electorate of Brandenburg Dutch Republic	Sweden	Draw Treaty of Habenhausen
1672–1674	Third Anglo-Dutch War	Dutch Republic Denmark–Norway	Kingdom of England Bishopric of Münster Kingdom of France	Victory Treaty of Westminster (1674)
1675–1678	Franco-Dutch War^[6]	Dutch Republic Holy Roman Empire Spain Denmark–Norway	Kingdom of France Kingdom of England Sweden	Victory Treaty of Westminster Treaties of Nijmegen
1675–1679	Scanian War	Dutch Republic Holy Roman Empire Brandenburg	Sweden Kingdom of France	Status quo ante bellum Treaty of Fontainebleau (1679)

1700–1799

Year	War	Belligerents (excluding Denmark)		Outcome
Year	War	Allies	Enemies	Outcome
1700–1720	Great Northern War	Tsardom of Russia Electorate of Saxony Poland–Lithuania Cossack Hetmanate Prussia Hanover Great Britain Denmark–Norway	Sweden Holstein-Gottorp Poland–Lithuania Ottoman Empire	Victory Treaty of Frederiksborg (1720)
1703-1711	Rákóczi's War of Independence	Holy Roman Empire: Austria Prussia Margraviate of Baden Serbs from Vojvodina Transylvanian Saxons Kingdom of Croatia Royalists Denmark–Norway	Kuruc forces (Kingdom of Hungary) Principality of Transylvania Kingdom of France	Victory
1701–1714	War of the Spanish Succession^[7]	Spain loyal to Archduke Charles Habsburg Monarchy Great Britain (before 1707) Dutch Republic Duchy of Savoy Prussia Kingdom of Portugal	Spain loyal to Philip V of Spain Kingdom of France Electorate of Bavaria	Victory Treaty of Rastatt Treaty of Utrecht
1733-1734	1733 slave insurrection on St. John	Denmark Sankt Jan	Rebel slaves	Victory Rebellion suppressed
1770-1772	Danish–Algerian War	Denmark–Norway	Dey of Algiers	Defeat Punitive expedition unsuccessful. Denmark–Norway pays higher tribute than before
1784	Sagbadre War	Ada-Danish Alliance Danish West India Company Little Popo Ada Accra Akuapem Akwapim Ga Krobo	Anlo Confederacy	Victory Return of territory previously acquired by Anlo from the Alliance Construction of Fort Prinzenstein
1788–1789	Theatre War	Denmark	Sweden	Inconclusive
1788–1790	Russo-Swedish War	Russian Empire	Sweden	Status quo ante bellum
1797	Action of 16 May 1797	Denmark	Ottoman Empire (de jure) Eyalet of Tripolitania	Victory

1800–1945

Year	War	Belligerents (excluding Denmark)		Outcome
Year	War	Allies	Enemies	Outcome
1800–1813	Napoleonic Wars	France Ottoman Empire	United Kingdom Sweden Russia Austrian Empire Prussia Spain Portugal Ottoman Empire (until 1803) United Kingdom of the Netherlands	Defeat Congress of Vienna (1815)
1801, 1807-1814	English Wars	Denmark–Norway French Empire Spain	United Kingdom Sweden	Defeat Treaty of Kiel Denmark joined the anti-Napoleonic alliance Frederick VI of Denmark cedes Norway to Sweden ending a more-than-400-year-old union between Denmark and Norway.
1807–1814	Gunboat War	Denmark–Norway	United Kingdom	Defeat
1808–1809	Finnish War	Russian Empire Denmark–Norway France Spain	Sweden United Kingdom Portugal	Victory Treaty of Fredrikshamn
1808–1809	Dano-Swedish War (1808-09)	Denmark–Norway France	Sweden United Kingdom	Stalemate Return to Status quo ante bellum
1813-1814	War of the Sixth Coalition	First French Empire Napoleonic Italy Kingdom of Naples Duchy of Warsaw Denmark–Norway Confederation of the Rhine	Russian Empire Kingdom of Prussia Austrian Empire United Kingdom Sweden Spanish Empire Kingdom of Portugal Two Sicilies Kingdom of Sardinia Saxony Bavaria Württemberg Baden United Netherlands	Defeat Treaty of Fontainebleau First Treaty of Paris
1815	War of the Seventh Coalition	United Kingdom of Great Britain and Ireland Prussia Austrian Empire Russian Empire Kingdom of Hanover Brunswick Sweden Kingdom of Spain Kingdom of Portugal Kingdom of Sardinia Kingdom of Sicily Switzerland Liechtenstein Denmark Bourbon Restoration United Kingdom of the Netherlands	First French Empire Kingdom of Naples	Victory Congress of Vienna
1825	Capture of the sloop Anne	Tri-national anti-piracy alliance Denmark Spain United States	Roberto Cofresí's pirates	Victory Anne (El Mosquito) is disabled; pirates flee ashore
1848–1850	First Schleswig War	Denmark	Prussia Duchy of Holstein German Empire	Victory London Protocol
1864	Second War of Schleswig	Denmark	German Confederation: Austrian Empire Prussia	Defeat Treaty of Vienna (1864)
1918–1920	Estonian War of Independence^[8]	Estonia United Kingdom Finland Denmark Latvia Swedish volunteers White Movement	Russian SFSR Commune of the Working People of Estonia	Victory
1939–1940	Winter War^[9] World War II	Finland	Soviet Union
1939–1940	Phoney War World War II	France Norway United Kingdom	Nazi Germany Kingdom of Italy
1940	Operation Weserübung World War II	Norway Denmark United Kingdom France Poland	Nazi Germany	Defeat German forces occupy Denmark.
1940–1945	Occupation of Denmark World War II	United Kingdom Soviet Union	Hungary Nazi Germany	Victory German forces withdrew at the end of World War II following their surrender to the Allies on 5 May 1945.

1946–present

Year	War	Belligerents (excluding Denmark)		Outcome
Year	War	Allies	Enemies	Outcome
1950–1953	Korean War	South Korea United States United Nations	North Korea China	Ceasefire
1990–1991	Gulf War	Australia Bahrain Bangladesh Belgium Canada Egypt France Italy Kuwait Morocco Netherlands Denmark Norway Oman Pakistan Qatar Saudi Arabia Senegal Spain Sweden Syria United Arab Emirates United Kingdom United States other allies	Iraq Republic of Kuwait	Victory
1992–1995	Bosnian War (Operation Bøllebank)	Croatia Bosnia and Herzegovina NATO	FR Yugoslavia	Victory Dayton Accords
1998–1999	Kosovo War	Albania Kosovo NATO	FR Yugoslavia	Victory Kumanovo Treaty
2002–2021	War in Afghanistan	Afghanistan Armenia Austria Azerbaijan Bosnia and Herzegovina Finland Georgia (country) Jordan Macedonia Montenegro NATO Sweden Ukraine Australia Malaysia Mongolia New Zealand Singapore South Korea Switzerland Tonga United Arab Emirates United Kingdom	Taliban al-Qaeda	Defeat Defeat of Taliban forces briefly before Taliban retook the region in 2021.
2002–2011	Operation Enduring Freedom – Horn of Africa Part of the War on Terrorism	Australia China Djibouti Ethiopia India Japan Kenya Malaysia NATO New Zealand Russia Seychelles Singapore Somalia South Korea Sweden Uganda Ukraine Denmark	al-Qaeda	Victory
2003–2011	Iraq War	Armenia Australia Azerbaijan Bosnia and Herzegovina Dominican Republic El Salvador Georgia (country) Honduras Iraq Japan Kazakhstan Peshmerga Macedonia Moldova Mongolia NATO New Zealand Nicaragua Philippines Poland Singapore South Korea Thailand Ukraine United Kingdom United States	Baath Party Loyalists Islamic State of Iraq al-Qaeda in Iraq Mahdi Army	Victory Danish withdrawal in 2008
2009-2016	Operation Ocean Shield	Somalia United States United Kingdom Denmark Netherlands Spain Greece Germany Belgium Canada Italy Portugal Turkey Norway Australia India New Zealand Japan Saudi Arabia Ukraine South Korea	Somali Pirates	Victory Number of Somali pirate attacks have been reduced dramatically
2011	2011 Libyan Civil War	Jordan National Transitional Council NATO Qatar United Arab Emirates United Kingdom United States Sweden	Libyan Arab Jamahiriya	Victory Overthrow of Gaddafi government UN, EU, AL and AU diplomatically recognise the National Transitional Council as the sole governing authority for Libya
2014–present	Military intervention against ISIL	United States Canada (2014–17) Belgium (2014–17) Sweden Germany Italy Turkey (2014–17) Netherlands Jordan Morocco (2014–16) United Kingdom	ISIL	Ongoing

References and notes

↑ "The Vikings raided Africa and then took slaves back to Ireland | Smash Company".
↑ "History: The Viking Adventure In Morocco".
↑ Ibn-Adhari, translated in Stefansson, Jon, "The Vikings in Spain. From Arabic (Moorish) and Spanish Sources". In Saga-Book of the Viking Club: Vol. VI Proceedings. University of London King's College, 1909, pp. 40–41.
↑ Jones, Gwyn (2001). A History of the Vikings. Oxford University Press. p. 403. ISBN 9780192801340. Battle of Lyrskov Hede.
↑ Bøgh, Anders (26 May 2015). "The Civil War periode 1131-1157". danmarkshistorien.dk/ (in Danish). Aarhus Universitet. Retrieved 21 November 2016.
↑ "1675 AD". Retrieved 30 October 2011.
↑ "The War of Spanish Succession 1701–1714". World History at KMLA. Retrieved 31 October 2011.
↑ "Iseseisvuse aeg 1918–40". Eesti. Üld. Vol. 11. Eesti entsüklopeedia. 2002. pp. 296–311.
↑ See Foreign support in the Winter War

Lists of wars involving European countries
Sovereign states	Albania Andorra Armenia Austria Azerbaijan Belarus Belgium Bosnia and Herzegovina Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland France Georgia Germany Greece Hungary Iceland Ireland Italy Kazakhstan Latvia Liechtenstein Lithuania Luxembourg Malta Moldova Monaco Montenegro Netherlands North Macedonia Norway Poland Portugal Romania Russia San Marino Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey Ukraine United Kingdom
States with limited recognition	Abkhazia Artsakh Kosovo Northern Cyprus South Ossetia Transnistria
Dependencies and other entities	Åland Faroe Islands Gibraltar Guernsey Isle of Man Jersey Svalbard

700–1300

1300–1500

1500–1699

1700–1799

1800–1945

1946–present

References and notes

See also