When Superpowers Collide games in order

All 4 games of the When Superpowers Collide series in the order they came out, from Germany 1985 (1982) to Norway 1985 (1985).

1. 
   Germany 1985Apple II, C64 · Strategic Simulations (pub.)
   1982
2. 
   RDF 1985Apple II, C64 · Strategic Simulations (pub.)
   1983
3. 
   Baltic 1985: Corridor to BerlinApple II, C64 · Strategic Simulations (pub.)
   1984
4. 
   Norway 1985Apple II, C64 · Strategic Simulations (pub.)
   Oct 1985