Your answer will be show patriotism
Answer:
Pearl Harbor I believe, please fact check me.
Explanation:
They had strong Navy's and had grown strong due to port tradeing
Negotiation is the main output. They should join the countries that have been victims of this group and seek solutions through peaceful means. The above is achieved with sufficient commitment. It is a titanic task but not impossible. The largest number of nations in the world must be allied to coordinate actions of a military nature. One can also think of a diplomatic solution to the eventual failure due to possible military action.