NATO

After the fall of the Berlin Wall in 1989, the organization became drawn into the Balkans while building better links with former potential enemies to the east, which culminated with several former Warsaw Pact states joining the alliance in 1999 and 2004. Since the September 11, 2001 terrorist attacks, NATO has attempted to refocus itself to new challenges and has deployed troops to Pakistan and Afghanistan and trainers to Iraq.
The Berlin Plus agreement is a comprehensive package of agreements made between NATO and the EU on 16 December 2002. With this agreement the EU was given the possibility to use NATO assets in case it wanted to act independently in an international crisis, on the condition that NATO itself did not want to act – the so-called "right of first refusal".[5] Only if NATO refused to act would the EU have the option to act. The combined military spending of all NATO members constitutes over 70% of the world's defence spending, with the United States alone accounting for about half the total military spending of the world and the United Kingdom and France accounting for a further 10%