It saw action during the World War II , but had a chequered service history due to the complications created by France 's position during the war .
The French submarine fleet of World War II was one of the largest in the world at that time .
It saw action during the World War II , but had a chequered service history due to the complications created by French 's position during the war .
The French submarine fleet of World War II was one of the largest in the world at that time .