I am really struggling to get 12 Open Border agreements as Portugal. Any tips? I have no problem OB'ing the Europeans (although Psychobella pretty much has to be OB'd on the first turn even before you found Lisbon, or else after Close Border penalties, she will never OB with you again) & Mali, and I use the Conquerors to vassalise the Aztecs and Incans. That usually gives me 10: 1. Spain 2. France 3. England 4. Netherlands 5. Germany 6. Vikings 7. Russia 8. Mali 9. Aztecs 10. Incans For the last two, I struggle. Getting an OB with Arabia seems to be pot luck, since they often become the Worst Enemy of Spain, and there's no way in hell I'm declaring war on Spain. Turkey and Japan -- these two are lost causes, I think. Khmer: I've gotten OB with them before, but in my last game, I failed to sway them despite having a total of +5 and giving them all my tech. It was ridiculous. They're supposed to be easy? :-/ Mongolia & China: very frequently, China has either collapsed or been vassalised to Mongolia. If that's the case, I tend to find it's very difficult to insert a crowbar in there to leverage an OB. I dunno. I'm a bit annoyed with this UHV. Any suggestions?