[Dr. Sivana]

I don't know how thw "Reagan Doctrine" applies here. The Reagan Doctrine specifically had to do with assisting resistances and counter-revolution in Marxist countries, instead of using our own forces, we provide the mens for the Contras and Mujahedin to roll back the Commies. That doesn't really apply to North Korea, and certainly doesn't apply to the current Middle East setup.

From Wikipedia:
Under the Reagan Doctrine, the United States provided overt and covert aid to anti-communist guerrillas and resistance movements in an effort to "roll back" Soviet-backed communist governments in Africa, Asia, and Latin America. The doctrine was designed to diminish Soviet influence in these regions as part of the administration's overall strategy to end the Cold War.

[exDemMom]

I think the writer was referring to Reagan’s tough, no nonsense attitude. Appeasement gets us nothing but gives the enemy time to develop deadly weapons and become more of a threat. Trump has signaled that the days of appeasement are over.