Which law used in rome had been adapted by the western democratic governments?

In 509 B.C. Rome developed a form of representative government. This government greatly influenced the United States democracy.

Roman law dealt mostly with strengthening the rights of Roman citizens. Principles of Roman Law which have been adapted by Western Civilization include:

The concept of democracy, or rule by the people, was first developed by ancient Greeks. Leaders of ancient Rome continued that development and expanded it into a republic.

Roman men were citizens who could vote for people to represent them. A ruling body, called a Senate, was run by powerful people. Less powerful citizens were given the right to veto or stop an action of the Senate. In these ways, all citizens had a say in the government.

One emperor, Claudius, said: “Let them enjoy indeed the title of citizens.” - (Emperor Claudius, as recorded b Tacitus, A.D. 48). I hope I helped! :)

d.)   when the us left nato after the end of the cold war and they had to evolve to focus on more humanitarian measures with the smaller budget