The European Union was formed for the purposes of rebuilding between neighboring countries after War World II and to solve economic difficulties between those countries. The EU was originally called European Coal and Steel Community in 1951 and gradually evolved into the European Union.
After War World II, the European infrastructure and economy were destroyed. Belgium, France, Germany, Italy, Luxembourg and The Netherlands made an agreement to create a common marketplace for the production and movement of raw coal and steel. The treaty between these countries removed tariffs and taxes in an effort to improve economy, grow the workforce and improve standards of living.
Various treaties and councils have emerged from the ECSC. In 1992 Belgium, Denmark, France, Germany, Greece, Ireland and Italy along with Luxembourg, The Netherlands, Portugal, Spain and the United Kingdom signed the Maastricht Treaty, becoming the European Union. The purpose of the treaty was to give more power to the European parliament, creating a common foreign and security policy and allowing involvement of domestic justice and home affairs. The EU creates a unified European citizenship and a single currency, furthering the original purpose of the ECSC. Some members were able to opt out of a part of the treaty, which involved a protocol and unified structure for employment and social issues.