No one could have recently joined the Illuminati. The organization was disbanded in 1785.
Montenegro joined 28 June 2006
South Sudan
No countries joined the EU in 2009. You cannot say what the previous three were as two joined at the same time in 2007 and ten joined at the same time in 2004.
Actually, it was in 2004. The following countries joined the EU.CyprusCzech RepublicHungaryEstoniaLatviaLithuaniaMaltaPolandSloveniaSlovakia
Most of then were part of the British Empire at one point or another and all have joined an organization called the Commonwealth of Nations.
Technically, you can't find out who has recently joined. There isnt' a "recently joined" list on WikiAnswers, because there really isn't a need for it. Though, above a user's badges on their bio page, you can see the date they joined, which could happen to be just recently.
In 2004 the following 10 countries joined the European Union. Cyprus Czech Republic Estonia Hungary Latvia Lithuania Malta Poland Slovakia Slovenia
No new countries joined in 2002. Prior to that, the last countries to join joined in 1995. The next set of countries joined in 2004.
The following 10 countries joined the European Union in 2004:Czech RepublicEstoniaHungaryLatviaLithuaniaMaltaPolandSlovakiaSlovenia
13 countries have joined since 2002. Malta, Cyprus, Slovenia, Estonia, Latvia, Lithuania, Poland, the Czech Republic, Slovakia, and Hungary all joined in 2004. Romania and Bulgaria joined in 2007. Croatia joined in 2013.
Two countries joined in 1986. They were Spain and Portugal.