In another time, a country bordering on great extensions of coast that pointed towards the ocean would have fortunately received all kinds of benefits from trade and fishing; that was no longer the case.
It took time for mankind to realize this, but for unknown reasons, sea life had a higher rate of evolution than other beasts. For coastal countries, such as Country C, this was like a cheap shot that came after a lasting beating.
What was once a blessing was now a cruel curse that lashed the shores of Country C, reducing its territory to a great extent. Originally, country C bordered its northern border with country F and the country to the west of country F, but that changed after the reduction of territory.