The search for European security cooperation form post the Cold War has become very important due to the dynamic change in Europe in the fields of economy, politics, social and culture. This dynamic has led to the changing threats in Europe. Because of this, European Union (EU) feels necessary to form a more proper security cooperation. The objective of this writing is to identify the form and dynamics experienced by European Union (EU) in obtaining a securitycooperation that is relevant and suitable with the condition faced by Europe at the present time.The research will be carried out by using security communities theory. This theory is selected because it can explain the relationship between security cooperation needs with the current phenomenon. The data is obtained by library research and processed with data analysis method. The result of this research has shown that Europe needs a new cooperation form in facing the current challenges. However it will still be in cooperation with the previous cooperation form.