 The harbour defence companies were responsible for local defence and for the security of the ships and submarines moored in the harbour . These companies and the harbour defence boats used to patrol the river were under the command of Harbour Commander Korvettenkapitän Kellerman . The 333rd Infantry Division was the German Army unit responsible for the defence of the coast between St Nazaire and Lorient . The division had no troops based in the town , but some were located in villages nearby and would be able to respond to any attack on the port . 
 The harbour defence companies <a href='uninflect' title='1'><mark>were</mark></a> responsible for local defence and for the security of the ships and submarines moored in the harbour . These companies and the harbour defence boats used to patrol the river <a href='uninflect' title='2'><mark>were</mark></a> under the command of Harbour Commander Korvettenkapitän Kellerman . The 333rd Infantry Division was the German Army unit responsible for the defence of the coast between St Nazaire and Lorient . The division had no troops based in the town , but some <a href='uninflect' title='3'><mark>were</mark></a> located in villages nearby and would be able to respond to any attack on the port . 
The harbour defence companies was responsible fa local defence and for the security of the ships and submarines moored in da harbour . These companies and the harbour defence boats used to patrol the river was under the command of Harbour Commander Korvettenkapitän Kellerman . Tda333rd Infantry Division was thdaerman Army unit responsible ffirthe defence of the coast between St Nazaire and Lorient . The division had no troops based in the town , but some was located in villages nearby and would b able to respond to any attack on thedart .