Why was a weak national government created under the articles of confederation?

The Articles formed a weak confederation that united the Thirteen British North American Colonies, with the capacity to govern almost only in times of war and emergencies.

Explanation:

The Articles of Confederation and the Perpetual Union, known as the Articles of the Confederation, constituted the first government document of the United States of America. They were approved by the Second Continental Congress on November 15, 1777, after several months of debate. It was a non-binding guideline until its ratification four years later, on March 1, 1781. The Articles of Confederation are considered one of the four founding documents of the North American nation.

just need the points

explanation:

it would be  

germany had to pay all damages related to the war.

and i think

germany had to take sole responsibility for the war.