Answer:
To raise money or soldiers, it could only request that the states provide what was needed. The national government had only one branch, the Confederation Congress, in which each state had one vote. ... Amending the Articles themselves was even harder: all thirteen had to vote in favor of a change.
British tyranny and not letting the colonists govern themselves
As I wrote elsewhere: Not really.
It wasn't until the Roosevelt Corollary to the Monroe Doctrine a hundred years later that the United States was seen as emerging into status as a world power.
The importance of the Monroe Doctrine is that the United States was going to mostly stay out of the wars in Europe, despite receiving aid from France during the Revolution and having been formerly British.