The new government in Buenos Aires had…
1815 CE
The assembly had refused to seat the delegates from the Banda Oriental, however, and Buenos Aires has pursued a system based on unitary centralism.
As a result, Artigas breaks with Buenos Aires and besieges Montevideo, taking the city in early 1815.
Once the troops from Buenos Aires have withdrawn, the Banda Oriental appoints its first autonomous government.
Artigas organizes the Federal League under his protection, consisting of six provinces, four of which will later become part of Argentina.