And on the question of these small and poor nations posing a national threat to the USA well , it's a joke.
Remember Nicaragua ?
To quote Reagan
"I, Ronald Reagan, President of the United States of America, find that the policies and actions of the Government of Nicaragua constitute an unusual and extraordinary threat to the national security and foreign policy of the United States and hereby declare a national emergency to deal with that threat."
Or Grenada ? The nutmeg capital of the world , what a threat they posed . The US population must have been shaking in their boots