EU9, has grown to be an integral part of the EU. This entity joined the EU in its 3rd enlargement phase in 2004, implanting new ideas and cultural diversity into the EU society.

The EU9 countries include Poland, Lithuania, Latvia, Hungary, Czech Republic, Slovakia, Slovenia, Estonia, and Malta. These states have made significant inputs towards furthering the goals of the European Union.

As such, grasping the function these nations has in the EU is necessary for any study relating to European economics, politics, or international relations.

Since their induction, the states belonging to EU9 have contributed significantly towards shaping the European Union's policies. Their geographical location provides critical strategic advantages, making them a vital part of the defense and security strategies of the EU.

Additionally, these nations have tremendously contributed to the European Union's economic and financial strength. The EU9's rapid economic growth website and keen integration into the EU market has led to increased trade among other EU states.

The social contribution of the EU9 is also significant. These states introduce profound historical backgrounds, individual cultural practices, and assorted languages, thereby enhancing the variety of the EU.

The introduction of EU9 has also affected the political scene within the EU. With their presence, the power dynamics have changed, with new coalitions and alliances emerging.

In conclusion, the contributions played by the EU9 countries are significant. From economic influence to cultural richness, and from security strategies to political dynamics, EU9 has strengthened the European Union's framework. As such, an comprehensive understanding of the EU9 is crucial to fully grasping the intricacies of the European Union.