What was the geographic relationship between soviet satellite nations and the iron curtain?

The Iron Curtain forms the Western border of the Soviet Satellite nations: all the countries to the West, also called the "West Bloc" were capitalist and the countries on the East are called "East Bloc". 

So the relationship was: the Iron Curtain was to the West of the Soviet Satelite nations.  

1.world in spatial terms2.places and regions 3.human systems4.physical systems5.geography and it's uses6.environment and society

The correct answer is a.f.c