The Georges Leygues class ("F70 type") is a type of anti-submarine frigate of the French Navy. They are polyvalent (multi-role), due to their Exocet and Crotale missile complement, making them especially suitable for defense of strategic positions, demonstrations, or high seas escorts.
Sea - Military - Surface Warfare
The superstructures were built as to optimize resistance against nuclear explosion blasts.
The F70 is internationally labeled an "anti-submarine destroyer" (hence the "D" in the hull numbers), though the French don't use the term and refer to the ships as "frigates".