Answer:
Because none of the Allie countries saw Italy or Japan as a serious long term threat so they created the "Europe First" strategy that said the Pacific would be the second priority until Hitler was defeated.
Explanation:
The four main Allies in World War I were "England, France, the United States and Russia, although it should be noted that Italy was also an important ally, although it is not listed.
They had a lot of money wasted and they lost a lot of lives during this.
