Beijing slammed NATO after it declared that China posed 'serious challenges' to global stability. During a summit in Madrid, the Western military alliance described a world plunged into a dangerous phase of the big-power competition and facing myriad threats, from cyberattacks to climate change. NATO allies agreed for the first time to include challenges and threats posed by China into a strategy blueprint in its latest summit in Madrid this week. The alliance’s previous document, issued in 2010, made no mention of China. Watch this video for more.