effort to Europe to supply allied forces in theatre. Against this necessity of logistical and combat support, the Soviet Union expanded its submarine fleet, which in the event of hostilities may have been sufficient to deny the supply of material to the theatre. As military strategists often design counter-strategies to meet the capabilities of the rival force, the West then responded with the construction of SOSUS lines to track Soviet submarines.

From the air, Soviet naval aviation had ASuW capabilities.