• The Axis of Aggressors includes China, Russia, Iran, and North Korea.
• These nations cooperate across multiple domains, including military production and finance.
• Their economic weight approaches a quarter of global GDP.
• The U.S. faces a shifting global military balance with insufficient defense spending.

The Axis of Aggressors' cooperation may indicate a significant challenge to Western leadership, suggesting that the U.S. must reassess its defense strategy and increase spending to maintain deterrence. This development could lead to a new era of great power competition, which may require the U.S. to adapt its military-industrial base and posture.