Hi there. First thing -- the Concert Tour Figure -- it's kind of useless as you get it right after the peace was achieved and if one has a few wars fought, one hardly has any Friends, and you need a Friend to send a guy on a Concert Tour (to be able to cross the border);
Second thing -- the Peace Theme and the War Theme are really the same song only with different arrangement;
Third thing -- red and black colours... I know these are historically the right colours bur it looks just line Ethiopia and it's hard to read the City names.
The rest is fine, no obvious errors.