Why did the British rush to build more warships in ww1

The Royal Navy was by far the most powerful of the world's fleets. It kept the British Isles immune from invasion and was also primed to blockade enemy ports in time of war. Fundamentally, however, its purpose was the protection of trade. ... Any threat to Britain's naval supremacy was a threat to the nation itself.

Explanation:

people can eat food during that time

because mexico wanted to choose a centralized location