Objectives:
The objective of the article is to present actions involving safety in the third decade of the 21st century within the North Atlantic Treaty Organization. The present international situation, both non-military threats as military conflicts, among others, in Ukraine and in the Middle East, have triggered the necessity to adjust operations of the Treaty to the new reality. All these threats led to the necessity to realize new tasks which had previously not occurred as part of the Treaty and to the increasing role and responsibility of NATO towards safety, above all, in Europe. Current threats to international safety such as, among others, conflict in Ukraine, conflict in the Middle East or the already mentioned terrorism have made it compulsory for NATO to adjust to reacting to current challenges.

Methods:
In order to achieve the intended goal of the article, an analysis of documents, available scientific publications and official Treaty websites has been performed.

Results:
The Treaty's functioning has changed over the space of recent years on account of the dynamic international environment, emerging threats and challenges which enforce a different scope of actions. As a result, adoption of the NATO New Strategic Concept , the NATO Warfighting Capstone Concept and the use of modern technologies for counteracting threats.

Conclusions:
The North Atlantic Treaty Organization ought to adjust its methods and actions to the changing reality. Lack of proper actions will result in weakening of safety of the Treaty's member states and restricting possibilities of defence against non-military and military threats.