submarine combat patrol
21Midget submarine — Some 80 Japanese Type D ( Koryu ) Midget Submarines in a drydock at Kure, October 19, 1945 …
22Anti-submarine warfare — (ASW or in older form A/S) is a branch of naval warfare that uses surface warships, aircraft, space craft or other submarines to find, track and then damage or destroy enemy submarines. Like many forms of warfare, successful anti submarine… …
23Maritime patrol — is the task of monitoring areas of water. Generally conducted by military and law enforcement agencies, maritime patrol is usually aimed at identifying human activities. Maritime patrol refers to active patrol of an area, as opposed to passive… …
24Civil Air Patrol — Active 1 December 1941 Present Country …
25405 Maritime Patrol Squadron — Active April 1941–September 1945 April 1947–present Country  Canada Branch …
26Eagle class patrol craft — The Eagle class patrol craft were a set of steel ships smaller than destroyers but having a greater operational radius than the wooden hulled, 110 foot submarine chasers developed in 1917. The submarine chasers range of about 900 miles at a… …
27Alfa class submarine — The Soviet Union/Russian Navy Project 705 ( Лира / Lyra ) was a submarine class of hunter/killer nuclear powered vessels (abbreviated PLA: Podvodnaya lodka atomnaya , nuclear hunter/killer submarine). The class is also known by the NATO reporting …
28No.1 class auxiliary patrol boat — Auxiliary Patrol Boat No.173 on 10 January 1945 Class overview Name: No.1 class auxiliary patrol boat …
29No.31 class patrol boat — No.35 in 1940 Class overview Name: No.31 class patrol boat Builders: Kure Naval Ar …
30Delta class submarine — Delta IV class nuclear powered ballistic missile submarine. The Delta class (Project 667B) is a class of submarines which formed the backbone of the Soviet and Russian strategic submarine fleet since its introduction in 1973. They carry nuclear… …
