Question

Why would Japan have had reason to resent the Five-Power Naval Treaty of 1922?

Answer 1

It allowed them fewer ships than the U.S. and Britain.

Answer 2

Japan have had reason to resent the Five-Power Naval Treaty of 1922 because it allowed them fewer ships than the U.S. and Britain in which they limited the kindly of parity they hoped to have on the world stage in terms of naval power.