puzzle

[Altruist]

R, I:
-         Rome, italy
-         Reykjavik, iceland
 
N, C:
-         N'djamena – chad
-         Nicosia – cyprus
 
PC, P:
-         Panama City – Panama
 
WCD, USA
-          it's WDC, einstein
 
PM, PNG
-         Port Moresby, Papua New Guinea
 
W, NZ:
-         Wellington, New Zealand
 
B, S:
-         Belgrade, Serbia + Bern, Switzerland
 
S, S:
-         San Marino, San Marino + Sao Tome, Sao Tome and Principe + Seoul, S. Korea + Singapore, Singapore + St. Pierre, St. Pierre and Miquelon + Stockholm, Sweden