The United States and the Western Europe gained a lot of political power because the cold war ended since the major communist states in Europe like the Soviet Union or Yugoslavia fell apart. Those who belonged to these states started supporting western ideals because they saw the failures of the communist and socialist regimes. The US grew in political power since it didn't have any global opponents, while the Europe grew because of things like the European Union which started getting more supporters.<span />
Greco-Roman and Judeo-Christian
traditions were similar in their influence of democracy as they helped spread
the ideas of government. Both traditions subscribed to the rule of law. They
advocated for equality and the rights and liberties of every individual in
addition to holding elections to elect officials.