"The European Union (EU) is probably the single most important organization of which the United States is not a member. With the Common Security and Defense Policy (CSDP) the EU has an integrated and consolidated view on security and defense issues independent from NATO. The EU and the U.S. share the same view on global threats and their root causes. CSDP put emphasis on the use of all political means and supporting instruments in crisis situations. The EU has the unique capability to apply both civilian instruments like police support, border assistance, monitoring, rule of law, development, civil service, and economic support and military instruments for peace supporting operations. This approach serves not only European but also U.S. interests. The EU can operate in regions where the U.S. is either not welcome or has no priority. The U.S. and the EU should improve their relationship on security issues based on their common interests as economic world powers."
Defense Technical Information Center (DTIC): http://www.dtic.mil/dtic/