Answer: The strengths of the Articles of Confederation were:
The first constitution
Congress had the power to deal with foreign affairs, declare war, make peace and sign treaties.
It had the power to manage Native Indian affairs.
It could pass laws that could affect all the states.
Could coin money
It had passed the Northwest Ordinance of 1787; it formed new states that had a population of 60,000 or more
It had control of the Department of Postal Service
Explanation: However, as most of us should already know, the Articles of Confederation was revised later and then the U.S Constitution was ratified.