As a Huaxia person, causing some trouble for the Japanese is a natural justice. Gao Yang certainly didn't mind trapping those Japanese whaling ships after finding a sucker to take over, especially since it was for Gustav's benefit.
The Japanese didn't have the guts of those logging companies to form a Commercial Alliance to strike back, nor did they dare to bring weapons onto their whaling ships. Relatively speaking, it wouldn't be too dangerous for Gustav to sink even more whaling ships. Of course, he couldn't escape the charge of piracy, but that was about it. It was much safer than opposing the Commercial Alliance, who had even brought out the Iron Madonna.
Cutting off someone's financial path was akin to killing their parents. Friends of Nature and the Commercial Alliance had become mortal enemies, and it was necessary for one side to completely disappear.
