11 Sodobni vojaški izzivi/Contemporary Military Challenges In this issue of the Contemporary Military Challenges, we focus on the relations between the European Union and NATO in the field of security. On 1 June 2021, NATO Foreign Ministers met in Brussels to discuss the details of the NATO Summit to be held on 14 June 2021 in Brussels, Belgium; the period, which coincides with the publication of this thematic issue. Twenty foreign ministers represented NATO member states, which are also EU members, making an event such as the NATO summit all the more important for the future of European security. Many topics were mentioned at the ministerial, such as Afghanistan, Belarus, Russia and China. In general, however, the emphasis was put on the fact that NATO should adapt to new challenges, security settings in a highly competitive environment. As mentioned by NATO Secretary General Jens Stoltenberg, we are presented with a number of challenges to our security that we need to tackle together, because no country and no continent can deal with them alone. This includes strengthening the existing partnerships and building new ones, including in the Asia-Pacific, Africa, and Latin America. The participants also discussed the stepping up of training and capability building for partners, as well as work to address the security impact of climate change. In the conclusion, the ministers broadly agreed that it was important to start work on NATO's next Strategic Concept, because our strategic environment has significantly changed since 2010. Secretary General underlined that NATO’s future adaptation would require Allies to continue investing in defence, and to invest more together, as a force multiplier and a strong message of unity and resolve. During Donald Trump’s mandate as President of the United States, the fact that the European Union or its Member States pay too little attention and thus resources for their own defence has often been a hot topic of political debate. In 2016, a year before the US President Trump took office, the European Union adopted a Global Strategy which envisaged several options to strengthen the Common EDITORIAL EU AND NATO: SECURITY RELATIONS Liliana Brožič DOI:10.33179/BSV.99.SVI.11.CMC.23.2.00 12 Sodobni vojaški izzivi/Contemporary Military Challenges Security and Defence Policy, which we will discuss in further detail in the next issue of the Contemporary Security Challenges. The Global Strategy provided that the European Defence Fund, the Permanent Structured Cooperation, the Coordinated Annual Review on Defence, and other existing and new mechanisms would operate in such a way that activities, resources and capabilities would not duplicate with NATO’s, but would complement each other. True enough that, within the Common Security and Defence Policy, the European Union has already foreseen many activities at its meetings and in the adopted documents in terms of strengthening this policy, but later implemented little. Has anything changed in this area in the past four years, or will perhaps something change at the time of the Conference on the future of Europe? Just as the Alliance is planning a new strategic concept, the European Union is announcing a Strategic Compass, which will set new directions for future cooperation, also in the field of security. In this issue, the authors present how the cooperation between the European Union and NATO is taking place in 2021 in some areas of security. The article titled EU-NATO cooperation and the Slovenian presidency of the Council of the European Union by Marko Mahnič presents an interesting thesis on whether obstacles to the coherent functioning of the European Union and North Atlantic Treaty Organization in the field of common security and defence are of a purely technical nature, or are there maybe differences in the policies, bilateral relations and national ambitions of certain countries. Damjan Štrucl writes about the EU-NATO partnership and ensuring information security and cybersecurity: theory and practice. According to him, the development of information and communication technology and new challenges of the modern security environment have led to the signing of the Joint Declaration on deepening the strategic partnership between both organizations in 2016. The author provides an analysis of the EU-NATO strategic partnership in ensuring security and defence in the modern security environment. Defence initiatives to strengthen the security of the European Union motivated Gregor Garb to write an article presenting what the 2016 European Union Global Strategy contributed to the EU’s strategic defence autonomy. Initially, in a theoretical sense, and after five years in a practical sense. All of course, given the fact that the European Union will continue to maintain strong relations and cooperation with the North Atlantic Alliance. David Humar and Nina Raduha present the process of creating the Military Strategy of the Republic of Slovenia in the Slovenian Armed Forces. Changes in the international environment have initiated security-related strategic considerations of NATO and the European Union. Slovenia as a member of both organizations also needs a strategic consideration in both military and security fields. Their article Liliana Brožič 13 Sodobni vojaški izzivi/Contemporary Military Challenges provides more details about the The process of devising the Military Strategy of the Republic of Slovenia. Tackling irregular migration in Europe is a topic addressed by Miklós Böröcz. Ever since 2015, the then mass illegal migration has posed a major problem for Europe and the European Union. The mass refugee crisis has gradually transformed into illegal migration of individuals and small groups, who have maintained and strengthened contact with everybody along the way, who take part in this and ensure that the migration flow with of illegal character does not subside. The author provides some solutions to this problem. EDITORIAL: EU AND NATO: SECURITY RELATIONS