Sorry, I'm not sure I'm following. What do you mean by "quick travel time" in this context?
I'm also not sure why Armenia would be a 3rd world country. What definition is used, the Cold War eastern/western bloc allegiance or as an undeveloped country in Africa, LatAm, Asia, or Oceania? Because as it stands today Armenia is neither.
I think you can define a country as a 3rd world by the amount of foreign aid that country is getting.
Is that a personal or an official definition?
I think most people consider anything that they can't point to on a map with a precision better than 1000mi as 3rd world.