The situation presents a broader challenge to the United States. The administration has heralded an era of “great power competition” with China and Russia, resulting in a competitive buildup that arms-control advocates warn is risking a full-blown arms race.
Russia is developing nuclear-armed underwater drones, nuclear-powered cruise missiles and other destabilizing weapons designed to penetrate U.S. missile defenses. China is ramping up its missile force and building out its nuclear capabilities with new nuclear submarines. And the United States is modernizing its own arsenal, while adding low-yield nuclear warheads to submarines and enhancing missile defenses. All the while, Iran and North Korea are advancing as threats.
The result is an escalatory cycle that experts say is threatening decades of progress controlling the world’s most dangerous weapons. A recent report from the Center for Strategic and International Studies warned that the decline of U.S. global influence and the rise of regional