title: Understanding NATO
abstract: NATO has remained relevant for 71 years because it has stayed committed to the purpose, values and principles of the North Atlantic Treaty of 1949 while at the same time continually adapting to the changing strategic environment. That dual-track formula should continue to serve as guidance for success in the coming years. John Andreas Olsen reviews how NATO has responded to Russia’s annexation of Crimea and the rise of the Islamic State since 2014, identifies six core challenges and suggests app
journal: The RUSI Journal