The main purpose with the essay is to look into NATO and annalise how the organisation haschanged it´s security policy work process today 2015, seen from two different world eventsduring the period 1989-2015, the collapse of the Berlin wall and war in Afghanistan. Purposeand issuses also apply based on two theories Anarchymodel and World society model. In orderto highlight two different ways to see NATO:s security policy work process over time untilthe present day. Issues: • How did the fall of Berlin wall in 1989 change NATO:s security policy work process? • How did the war in Afghanistan in 2001 change NATO:s security policy work process? The essay is a qualitative method literature review describing NATO as an organisation andworld events that had impact on NATO over time. The result show that NATO has shifled it´s borders further fast because ”new” membercountries from the former Soviet Union are party members. NATO has moved closer toRussia, and increased in momentum. A possible armed conflict could be in the advantage ofnew markets that werwe previously isolated and intiate a co-operation with entrant´s. The result also shows that terroism and conflicts are carried out between operators and groupswithout fixed borders. It is largely down to the balance of power between NATO and Warsawpact dosesn´t exist anymore. Earlier controlled Superpowers of their allies. It has providedspace for new opponents to understand rights and responsibilities according to their way ofthinking and acting on that basis. These operators are weaker in impact strength and hencethey act according to their own circumstances and conditions, often through terroism. NATOhas transformed a large part of it´s security policy process to better respond to threats such asterroism.