The correct answer to this open question is the following.
Although there are no options attached we can say the following.
According to the realist perspective, in order for the countries to avoid hegemony, the alliance system that would be more likely to occur is the military and political alliance.
In this example, Pakistan and Germany would have the necessity to formally join forces to try to impede that the United States wanted to exert its power against them.
So Pakistan and Germany would have to sign a military alliance, and furthermore, a political and economic alliance or agreement to have better trade opportunities to negotiate with the United States.