The concept of Federalism permits states the ability to do all of the following EXCEPT Declare war

Tax

Establish local governments

Declare war, the hill and north of fort hill and fort hill hill fort north park

Assemblies do not have written codes of laws. laws are matters for magistrates and courts, not assemblies. codes of law are things such as civil law, criminal law, and constitutional law. what assemblies have are procedures regarding debating, voting and other business they might carry out.  also note that rome had three assemblies: the assembly of the soldiers, the assembly of the tribes, and the plebeian councils.