America's rivals are piling on the pressure all at once

• US rivals and foes — specifically Russia, Iran, China, and North Korea — are all becoming closer.
• As these countries deepen their military ties, they are also flexing their muscles and challenging norms.
• Across the world, America's rivals appear to be piling on the pressure all at the same time.

Fueling wars and terror attacks. Illegally making nukes. Aggressively bullying nearby nations. And trying to bludgeon a neighboring country into bloody submission.

These incidents over the past few weeks highlight how US rivals and foes are increasingly challenging the American-led global order as threats multiply worldwide.