A gradual retreat into strategic passivity led to the world’s spinning suddenly out of control.
Excerpt
Why are so many actors challenging American power in so many parts of the world? Because the U.S. is losing its power to deter….the erosion of deterrence usually begins gradually and ends suddenly. Emboldened by American failures to respond effectively (as when Mr. Putin invaded Georgia in 2008 and Ukraine in 2014, when President Obama failed to enforce his “red line” in Syria, or when China built and militarized artificial islands in the South China Sea), our adversaries gradually lost their inhibitions and dared to challenge us more directly in more damaging ways.