Herring travel in schools billions of fish strong and, thanks the outsized role they've played in North American and European culture, they've been called the most influential fish in history. Now, threatened first by overfishing and then by the effects of climate change, international organizations have worked to set treaty limits on how many tons of the fish different countries can catch each year. The problem: The limits are more randomly applied, rather than being based on rigorous standards or rules. Now, some countries are voicing their displeasure by resisting the limits, altogether. Begun, these Herring Wars have.