[R-sig-Geo] maps showing post-Soviet states?

[Spencer Graves]

       What would you suggest I do to create a world map highlighting 
Taiwan and post-Soviet states like Azerbaijan, Uzbekistan, Tajikistan, 
Turkmenistan, and Croatia?


       The region argument in maps::map won't recognize any of these, 
and my literature search identified hundreds of packages with some 
spatial / geographical / mapping content.


       Thanks,
       Spencer Graves