Kriegsmarine Coastal Forces

Introduction
Minensuchboote (minesweepers)
Torpedoboote (torpedo boats) - small destroyers armed with two sets of torpedo tubes and similar to the Allied destroyer escort
Raumboote - trawlers pressed into military service which were literally "outpost" vessels performing a patrol service and giving early warning of the approach of enemy forces
Tenders: "Mothership" vessels for flotillas of smaller vessels such as E-boats and U-boats
Tankers and auxiliaries - provided crucial refuelling facilities to U-boats. Most were hunted down and destroyed during the course of the war
Blockage breakers
Miscellaneous - including former cruise liners acting as troopships, and the Wilhelm Gustlov, training ships and Hitler's personal yacht