The AI is seemingly bugged. I think this patch is very much broken. In one of my Immortal games, Greece outnumbers me 5-1 in army troops, declares war on me and tries to take my capital. Five turns into the war they're willing to make a deal on the table. They will ask for all of my cities. Simply put, you just need to remove all the cities they ask on the table, and then propose a white peace. THEY ALWAYS ACCEPT. It doesn't matter if your army is a single warrior with their army outnumbering you 20 times, if you can survive five turns after they declare war, all you need to do is ask for a white peace and they auto-accept it. How has this not been noticed?