Which military alliance of north american and western european nations pledged in 1949 that all member nations would come to the aid of any member attacked by an outside enemy?

Why did european nations face financial challenges after world war 1?

Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.

Explain how the principle of separation of powers is reflected in the