Battles on 9 September

14 battles fought (or begun) on 9 September, from 1601 to 2012, 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 9 September?

The best-known battles on this day (by number of Wikipedia language editions) are Battle of the Bzura (1939), Battle of Hel (1939), Operation Medak Pocket (1993).

• Siege of Kanizsa (1601) 9 September 1601 – 18 November 1601Hungary · Long War
• Siege of Kreuznach 9 September 1620 – 10 September 1620Germany · Palatinate campaign
• Battle of the Alte Veste 9 September 1632Germany · Thirty Years' War
• Battle of Cádiz (1656) 9 September 1656Spain · Anglo-Spanish War
• Siege of Landau (1704) 9 September 1704 – 25 November 1704Germany · War of the Spanish Succession
• Action of 9 September 1796 9 September 1796Indonesia · French Revolutionary Wars
• Battle of Geok Tepe (1879) 9 September 1879Turkmenistan · Russian colonisation of Central Asia
• Battle of Ginchy 9 September 1916France · World War I
• Battle of Hel 9 September 1939 – 2 October 1939Poland · World War II
• Battle of Kampinos Forest 9 September 1939 – 20 September 1939Poland · 1939 Invasion of Poland
• Battle of the Bzura 9 September 1939 – 19 September 1939Poland · 1939 Invasion of Poland
• Battle of Mission Ridge–Brigade Hill 9 September 1942Papua New Guinea · World War II
• Operation Medak Pocket 9 September 1993 – 17 September 1993Croatia · Croatian War of Independence
• Siege of Bani Walid (2012) 9 September 2012 – 26 October 2012Libya · 2011–present Libyan factional fighting