contested ground, 5 engagements
Boulogne-sur-Mer: contested ground
The ground around Boulogne-sur-Mer was fought over 5 times between 1492 and 1940: 3 sieges and 2 naval actions, in 4 different wars. All 5 recorded sites lie within a few kilometres of one another.
In time order
Engagements by date
| Date | Engagement | Place | War |
|---|---|---|---|
| 18 October 1492 | Siege of Boulogne | Boulogne-sur-Mer | |
| 14 September 1544 | Sieges of Boulogne | Boulogne-sur-Mer | Italian War of 1542–46 Un penesote |
| 16 August 1801 | Raids on Boulogne | Boulogne-sur-Mer | French Revolutionary Wars |
| 2 October 1804 | Raid on Boulogne | Boulogne-sur-Mer | Napoleonic Wars |
| 22 May 1940 | Battle of Boulogne | Boulogne-sur-Mer | Western Front |
Contested ground is computed: recorded sites within six kilometres of one another, three or more engagements, in more than one war or across more than fifty years. Coordinates are those recorded in Wikidata and can be approximate.