HistoryData
war1758

1758 naval battle between Britain and France near the Spanish port during the Seven Years' War

February 28, 1758

Britain's interception of French reinforcements at Cartagena contributed directly to the fall of Louisbourg, weakening French control in North America.

Quick Facts

Year
1758
Category
war

Key Facts

Date
28 February 1758
Conflict
Seven Years' War
British commander
Henry Osborn
French commander
Michel-Ange Duquesne de Menneville
Strategic consequence
Fall of Louisbourg later in 1758

Location

Map of Cartagena, SpainMap of Cartagena, SpainCartagena, Spain

Cause → Event → Consequence

Cause

During the Seven Years' War, a British fleet under Henry Osborn established a blockade of a French fleet sheltering in the Spanish port of Cartagena. France dispatched a relief force under Michel-Ange Duquesne de Menneville to break the blockade and provide assistance to its beleaguered forces.

Event

On 28 February 1758, the British fleet attacked and defeated the incoming French relief force off Cartagena. Osborn's interception prevented the French squadron from linking up with the blockaded fleet or proceeding to reinforce French positions in North America.

Consequence

With French naval reinforcements effectively neutralized, only limited assistance reached the fortress of Louisbourg in North America, which was under British siege. Louisbourg fell later in 1758, marking a significant shift in the balance of power in the North American theatre of the Seven Years' War.

Belligerents & Mobilization Analysis

Side A

1 belligerent

Great Britain
Key Commanders

Henry Osborn.

Side B

1 belligerent

France
Key Commanders

Michel-Ange Duquesne de Menneville.

Outcome
British victory; French relief force defeated, Louisbourg left without reinforcement

Timeline Context

Timeline around 175817581755175617571759176017611758 battle of the French and Indian War1758 treaty between Britain and Prussia1758 naval battle during the Seven Years' War1758 naval battle of the Seven Years' War1758 battle between the Habsburg Monarchy and the Kingdom of Prussia1758 military operation1758 battle during the French and Indian WarTreaty of 1758 between Indigenous and Britishbattle-of-cartagena-1758