Tensions are again rising as a result of a long-simmering border dispute between the United States and another country. No, not that one - it's Canada.
Tensions have been rising between American and Canadian lobstermen over the fishing rights on the waters of three unpopulated islands off the coast of Maine—or Nova Scotia, depending on who you talk to.
The U.S./Canadian border is the longest one in the world, at 5525 miles, but this one section remains in dispute; exacerbated by the fact that prices for lobster are on the rise. They're just deep-sea-dwelling insects - albeit large ones - but for some reason, a lot of folks like to eat them. And thus, the water wars continue to this day.
We haven't quite reached the level of tension that currently exists between China and Japan over uninhabited islands in the South China Sea, but things are moving in that direction; some Canadian news organizations on the east coast have raised the suggestion that war with the USA may be on the horizon. That's a bit extreme, but indicative of how angry fishing communities on both sides of the border are becoming.