Title: Getting to Know EU9: The Pivotal Role it Plays in the EU

Comprising of nine states, EU9 has grown to be an integral component of the EU. This group entered the EU in its 3rd enlargement phase in 2004, bringing 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 countries each have given meaningful contributions towards furthering the aims of the European Union.

In this respect, grasping the function these nations has in the EU is important for any study relating to international relations, politics, or European economics.

Right from their admission, the states belonging to EU9 have given substantially towards shaping the policies of the European Union. Their geographical location provides critical strategic benefits, rendering them a crucial part of the defense and security strategies of the EU.

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

The cultural contribution of the EU9 is also significant. These nations incorporate deep historical backgrounds, individual cultural practices, and varied languages, thus enhancing the diversity of the EU.

The addition of EU9 has also impacted the internal politics within the EU. With their involvement, EU9 the power dynamics have shifted, with new coalitions and alliances developing.

In conclusion, the parts played by the EU9 countries are substantial. From economic influence to cultural richness, and from security strategies to political dynamics, EU9 has fortified the European Union's structure. As such, an thorough understanding of the EU9 is vital to fully grasping the complexities of the European Union.