Kersaint was one of six Vauquelin-class destroyers built for the French Navy during the 1930s. The ship entered service in 1934 and spent most of her career in the Mediterranean. During the Spanish Civil War of 1936–1939, she was one of the ships that helped to enforce the non-intervention agreement. When France declared war on Germany in September 1939, all of the Vauquelins were assigned to the High Sea Forces which was tasked to escort French convoys and support the other commands as needed. Kersaint helped to protect a group of freighters in the Atlantic once, but otherwise remained in the Mediterranean for the duration of the war.

The Vauquelin class was a group of six large destroyers built for the French Navy in the early 1930s. Entering service in 1933–1934, the sister ships spent most of their careers in the Mediterranean. During the Spanish Civil War of 1936–1939, they helped to enforce the non-intervention agreement. When France declared war on Germany in September 1939, all of the Vauquelins were assigned to the High Sea Forces which was tasked to escort French convoys and support the other commands as needed. Three of the sisters briefly deployed to Scotland in early 1940 to support the Allied forces in the Norwegian Campaign and Maillé Brézé was lost to an accidental explosion. The others returned to the Mediterranean in time to participate in Operation Vado, a bombardment of Italian coastal facilities after Italy entered the war in June.