<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Between 1993 and 2009, the European Union (EU) legally comprised three pillars . This structure was introduced with the Treaty of Maastricht on 1 November 1993, and was eventually abandoned on 1 December 2009 upon the entry into force of the Treaty of Lisbon, when the EU obtained a consolidated legal personality . </P> <Ol> <Li> The European Communities pillar handled economic, social and environmental policies . It comprised the European Community (EC), the European Coal and Steel Community (ECSC, until its expiry in 2002), and the European Atomic Energy Community (EURATOM). </Li> <Li> The Common Foreign and Security Policy (CFSP) pillar took care of foreign policy and military matters . </Li> <Li> Police and Judicial Co-operation in Criminal Matters (PJCCM) brought together co-operation in the fight against crime . This pillar was originally named Justice and Home Affairs (JHA) </Li> </Ol> <Li> The European Communities pillar handled economic, social and environmental policies . It comprised the European Community (EC), the European Coal and Steel Community (ECSC, until its expiry in 2002), and the European Atomic Energy Community (EURATOM). </Li>

What are the 3 pillars of the eu