Battles on 20 June

21 battles fought (or begun) on 20 June, from 1622 to 1944, in date order. Dates are from Wikidata and are shown only for battles from 1600 onwards with a single exact date. Dates recorded in the Julian (Old Style) calendar are listed under their Julian day and marked.

Which battles happened on 20 June?

The best-known battles on this day (by number of Wikipedia language editions) are New Georgia campaign (1943), Battle of Höchst (1622), Siege of the International Legations (1900).

• Battle of Höchst 20 June 1622Germany · Palatinate campaign
• Battle of Martynów 20 June 1624Ukraine
• Battle of Kallo 20 June 1638Belgium · Eighty Years' War
• Siege of Calcutta 20 June 1756India · Bengal
• Battle of Stono Ferry 20 June 1779United States · American Revolutionary War
• Battle of Ramsour's Mill 20 June 1780United States · American Revolutionary War
• Battle of Cuddalore (1783) 20 June 1783India · American Revolutionary War
• Battle of Cap-Français (1793) 20 June 1793 – 22 June 1793Haiti · Haitian Revolution
• Second Battle of Marengo 20 June 1799Italy
• First Siege of Girona (Peninsular War) 20 June 1808 – 21 June 1808Spain · Peninsular War
• Battle of Huaqui 20 June 1811Bolivia · Peruvian War of Independence
• Battle of Slobozia 20 June 1811 – 27 May 1812Romania · Eighth Russo-Turkish War
• Battle of Peñacerrada 20 June 1838 – 22 June 1838Spain · First Carlist War
• Battle of Alsónyárasd 20 June 1849 – 21 June 1849Slovakia
• Battle of Komorów 20 June 1863Poland
• Battle of LaFourche Crossing 20 June 1863 – 21 June 1863United States · American Civil War
• Siege of the International Legations 20 June 1900 – 14 August 1900China · Boxer Rebellion
• Battle of Bergama 20 June 1919Turkey · Greco-Turkish War
• Battle of Saumur (1940) 20 June 1940France
• New Georgia campaign 20 June 1943 – 7 October 1943Solomon Islands · World War II
• Battle of Nerva Island 20 June 1944At sea · Eastern Front