The western bloc was made up of the United States and its allied nations.
Explanation:
When the world facing the Cold War era the same time the world also divided into power blocs Western Bloc and Eastern Bloc. The western bloc contains capitalist countries the major player of this Bloc was the United States and its allies nations who support Capitalism. while on the other hand Eastern Bloc contains soviet union and its allied nations who support communism.
This bloc system came into end after the disintegration of the soviet union in 1989 and the United States of America emerged as the only superpower of the world.
The Concert of Europe was a system of dispute resolution adopted by the major conservative powers of Europe to maintain their power, oppose revolutionary movements, weaken the forces of nationalism, and uphold the balance of power.
It was the "west" that was the region of the United States that experienced the greatest increase in population by percentage from 2000 to 2004, since many people found it more affordable to move.