Norwegian Ships (Neutral?)

[RustySubmarine]

I came across a Norwegian ship in the North Sea, which showed up on the chart in (Green) as a neutral. Apparently, most of the Norwegian Ships were allocated to British Shipping Companies and were used in British Convoys across the Atlantic. Therefore, attacking or sinking a ship flying the Norwegian flag is quite in order, which would probably be carrying supplies for the British war effort.

Reading the book Attack & Sink The Battle for Convoy SC42 by Bernard Edwards (Brilliant read by the way) relates to this fact that Norwegian ships in this convoy were operated by various British companies, after the invasion of Norway. So as far as the U boats were concerned, although showing green on the chart in SH3 as neutral, they were in fact under British control so were quite in order to attack.