Battles on 17 September

17 battles fought (or begun) on 17 September, from 1631 to 1996, 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 17 September?

The best-known battles on this day (by number of Wikipedia language editions) are Battle of Antietam (1862), Battle of Breitenfeld (1631) (1631), Allied invasion of Italy (1943).

• Battle of Breitenfeld (1631) 17 September 1631Germany · Thirty Years' War
• Battle of Vilanova 17 September 1658Portugal · Portuguese Restoration War
• Siege of Fort St. Jean 17 September 1775 – 3 November 1775Canada · American Revolutionary War
• Battle of Peyrestortes 17 September 1793France · French Revolutionary Wars
• Battle of Krupczyce 17 September 1794Belarus
• Battle of Estrelleta 17 September 1845Dominican Republic · War of Dominican Independence
• Action at Blue Mills Landing 17 September 1861United States · Trans-Mississippi theater of the American Civil War
• Battle of Pavón 17 September 1861Argentina · Argentine Civil Wars
• Battle of Antietam 17 September 1862United States · American Civil War
• Battle of the Yalu River (1894) 17 September 1894At sea · First Sino-Japanese War
• Battle of Blood River Poort 17 September 1901South Africa · Second Boer War
• Battle of Elands River (1901) 17 September 1901South Africa · Second Boer War
• Battle of al-Musayfirah 17 September 1925Syria · Great Syrian Revolt
• Battle of Santander 17 September 1937Spain · Spanish Civil War
• Allied invasion of Italy 17 September 1943Italy · World War II
• Battle of Arnhem 17 September 1944 – 26 September 1944Netherlands · Operation Market Garden
• 1996 Gangneung submarine infiltration incident 17 September 1996South Korea