Ruby, 269 246 241 235 227

g="b6wapsm769n90ongzuvadg5vdat6ap7v1oyyie3j5wxbq9xtycezrtt9xamn9riqnnxnsxjx0al8uk8rmk5snb7quly7t5i9rkq21r1vnns5vdm7gwzqtxwwwmj02nqxlhl".to_i 36
l=*?A..?Z
676.times{|i|print g.to_s(2)[i]==?1?l[i/26]+l[i%26]:"  ",i%26==25?$/:" "}

g is a matrix where each cell that has a country code is a 1 and all others are 0. All rows are written behind and the resulting binary number has been converted to a base 36 representation. Then I just iterate over all cells and check if the code shall be printed.