1941 23 Dec. 2/3 The important submarine pens at Brest were also damaged during the attack.
1966 S. Hess 500 Young Joe Kennedy had been killed while performing a daring mission designed to destroy enemy submarine pens on the Belgian coast.
2001 Sept. (Suppl.) 4/2 If..the Treasury had accepted the idea of excavating submarine pens..Malta would have been a secure base.