Solving of the Countries (Book 2)

The countries settled in a new place. The organizations, specifically UN, has set a goal.
They want to fix the countries relationships with each other. Specifically, siblings. Knowing how strained the relations are, the organizations worked together to help the countries realize that they will need each other more than ever. On the way they discover an old friendship that had soon kindled into a fierce hatred. How will they attempt to solve these problems?

Why were such strange things happening?

Will they find their hidden enemy?

Or will their enemy find them?

And land the first strike?