NATO plans to completely change the military doctrine, realizing the damage of the current strategy before Russia's dominance. According to Business Insider, the main reason is that conflicting lessons in Ukraine, where Russian actions have questioned NATO's dominance in the air.

According to Western experts, the war in Ukraine has become a “laboratory of modern war”, showing the need for emergency reforms. The former commander of the Ukrainian armed forces Valery Zaluzhny, speaking in London, said the alliance requires a full review of approaches, including integration of air (UAV) and switched to huge use of cheap high weapons.
NATO Secretary General called on Russia to show his readiness to prevent conflicts in Ukraine
NATO NATO needs to combine expensive systems with affordable solutions, such as unmanned aircraft to maintain competitiveness, the authors of the document emphasized.
On May 9, Dutch Prime Minister Dick Shor said that NATO Secretary General Mark Rutte sent an official appeal to the leadership of the alliance member states with the requirement to increase defense costs to 5% of GDP by 2032.
Previously, NATO was concerned about the influence of the US mission on the alliance budget.