Final answer:
Congress struggled to enforce Revolutionary War debt repayment, lacked a sufficient national defense, and could not establish a cohesive foreign policy under the Articles of Confederation, leading to the creation of the Constitution.
Step-by-step explanation:
Under the Articles of Confederation, Congress was unable to accomplish several critical tasks. One such action Congress could not achieve was the power to effectively enforce financial obligations on the states, such as the repayment of Revolutionary War debt.
Efforts to obtain funds through tariffs were often blocked by individual states for their financial interests, illustrating the weak centralized power.
Furthermore, Congress lacked the authority to compel states to provide soldiers, rendering the country inadequately defended during a time when foreign threats loomed, exhibiting the need for a stronger national defense capability.
Lastly, establishing a workable foreign and commercial policy was challenging because each state retained the right to interact with foreign nations as they saw fit, leading to a lack of coherent national policy and enforcement difficulties.
These weaknesses eventually sparked the need for a stronger central government, leading to the Constitutional Convention and the creation of the U.S. Constitution.