Four South American countries joined forces this week in a bid to combat illegal fishing by huge Chinese fleets off their coasts. Chile, Colombia, Ecuador, and Peru threatened measures “to prevent, discourage and jointly confront” illegal fishing near their exclusive economic zones in the Pacific. The joint statement made no specific mention of China but environmental groups Greenpeace and Oceana have repeatedly warned of the growing presence of massive Chinese fishing fleets in the area. Oceana has said…