on this day, 21 engagements
Battles fought on 18 May
21 engagements in the atlas were fought on 18 May between 1190 and 1920: 15 battles, 5 sieges and 1 naval action. Among them: Siege of Malta (1565), Siege of Vicksburg (1863).
Engagements by date
| Date | Engagement | Place | War |
|---|---|---|---|
| 18 May 1190 | Battle of Iconium | Iconium | Third Crusade |
| 18 May 1456 | Battle of Oranik | Debar | Skanderbeg's rebellion |
| 18 May 1534 | Battle of Seibagaharu | Mount Ōmure | |
| 18 May 1565 | Siege of Malta | Grand Harbour | Ottoman–Habsburg Wars |
| 18 May 1656 | Battle of Valenciennes | Valenciennes | Franco-Spanish War |
| 18 May 1658 | Battle of Szkudy | Lithuania | Deluge |
| 18 May 1790 | Battle of Andros | Andros | Seventh Russo-Turkish War |
| 18 May 1794 | Battle of Tourcoing | Tourcoing | War of the First Coalition |
| 18 May 1808 | Battle of Mobekk | Dano-Swedish War of 1808-1809 | |
| 18 May 1811 | Second Siege of Badajoz, Part II | Badajoz | Peninsular War |
| 18 May 1815 | Battle of Échaubrognes | Saint-Pierre-des-Échaubrognes | War in the Vendée |
| 18 May 1821 | Battle of Doliana | Ano Doliana | Greek War of Independence |
| 18 May 1842 | Battle of Chapoo | Zhapu Town | First Opium War |
| 18 May 1848 | Siege of Peschiera | Peschiera del Garda | |
| 18 May 1859 | Battle of Logandème | Fatick | |
| 18 May 1861 | Battle of Sewell's Point | Norfolk, Virginia | American Civil War |
| 18 May 1862 | Battle of Barranca Seca | Nogales Municipality | Second French intervention in Mexico |
| 18 May 1863 | Siege of Vicksburg | Vicksburg, Mississippi | American Civil War |
| 18 May 1864 | Battle of Yellow Bayou | Avoyelles Parish, Louisiana | American Civil War |
| 18 May 1876 | Battle of Milin Kamak | Milin Kamak | |
| 18 May 1920 | Enzeli Operation | Bandar-e Anzali | Russian Civil War |
Only engagements recorded to the day are listed. Dates before 1582 are Julian, as recorded.