[8] The Spanish Ministries of Interior and Foreign Affairs allocated around €37 million without public tender for security enhancement of the summit, including the acquisition of 6,000 taser chargers.

[10][11][12] The 2010 document makes mention of "peace in the Euro-Atlantic area" and "the threat of a conventional attack on NATO territory [being] low", showing the outdated nature of the previous strategic concept.

[13] Gitanas Nausėda, the president of Lithuania, wants the next strategic concept to consider Russia a "long-term threat to the entire Euro-Atlantic area.

[16] On 29 June, leaders of member states from both the European Union and NATO attended a dinner hosted by Spanish Prime Minister Pedro Sánchez in Madrid.

[18] In the wake of the Russian invasion of Ukraine and a subsequent tilt in the public opinion of Finland and Sweden, the prospect of both countries applying for NATO membership before the summit was raised.

[23][24] On 19 May, Finnish President Niinistö and Swedish Prime Minister Andersson announced that they were ready to address Turkey's security concerns and that they always condemned terrorism.

[25][26] On 28 June, the first day of the summit, the Turkish delegation dropped their opposition to Finland and Sweden's NATO membership applications and signed a tripartite memorandum addressing Turkey's concerns regarding arms exports and the Kurdish–Turkish conflict.

Swedish Prime Minister Andersson refused to deny Turkey's claim that Sweden had promised to deport political refugees and opponents wanted by Erdoğan's government.

[38][39] On 26 June 2022, several thousand people gathered in Madrid to protest against NATO, calling for the dissolution of the organisation and the closure of US military bases in Spain.