Henri de La Tour d'Auvergne, vicomte de Turenne, commonly known as Turenne, was a French general and one of only six Marshals to have been promoted Marshal General of France. The most illustrious member of the La Tour d'Auvergne family, his military exploits over his five-decade career earned him a reputation as one of the greatest military commanders in history.

The Battle of the Dunes, also known as the Battle of Dunkirk, took place on 14 June 1658, near the strategic port of Dunkirk in what was then the Spanish Netherlands. Part of the Franco-Spanish War and concurrent Anglo-Spanish War, a French army under Turenne, supported by troops from the Commonwealth of England, had besieged Dunkirk. Led by John of Austria the Younger and Louis, Grand Condé, a Spanish force supported by English Royalists and French Fronde rebels attempted to raise the siege but suffered a severe defeat.