What was the main difference between the confederation established under the articles of confederation and the federal system established under the constitution?

The main difference between the confederation under the Articles of Confederation and the federal system established by the Constitution lies in the distribution of power. The Articles created a weak central government with limited authority, relying heavily on the states, whereas the Constitution established a stronger federal government with the power to tax, regulate commerce, and enforce laws. This shift aimed to address the inefficiencies and challenges faced under the Articles, allowing for a more unified and effective governance structure.