The Jeanne d'Arc (R97) is a helicopter cruiser of the French Navy.
She is the third vessel of the French Navy named after Joan of Arc
("Jeanne d'Arc", in French), a national heroine of France and saint
of the Catholic Church who repelled the English invasion during the
Hundred Years' War.

In peace time, the Jeanne d'Arc is used for teaching purposes; however,
in case of emergency or crisis, she becomes a fully capable helicopter cruiser.
from:Wikipedia