Battle of Lagos (or Cape St Vincent)
Summary
The French fleet intercepts a large Anglo-Dutch merchant convoy near the Portuguese coast. Tourville wins a decisive victory, seizing or destroying a massive portion of enemy maritime commerce.
Historical context
France seeks to weaken its adversaries economically by striking Atlantic trade routes. The targeted convoy carried strategic colonial goods.
Tactics
Surprise on the high seas, concentration of French ships of the line on the enemy escort, encirclement and rapid destruction before reinforcements arrive.
Consequences
Serious financial loss for England and the Dutch Republic; strengthening of French morale after the defeat at La Hougue in 1692.