It was turn 150 on standard speed on a huge earth map with 16 civs and 10 CS. Everyone who knows huge earth maps knows, that this amount of players leaves loads of space for everyone to develop peacefully. Still, after Napoleon attacked me around turn 130 I got DoW'd by Theodora, both after having a DoF. Their reasoning was clear: I was weak. After I got steamrolled I decided to reveal the map via debug mode and what I found was rather disturbing: Every civ had about 20 up-to-date troops in their territory. Genghis Khan had a Keshik standing on every single tile of land he owned. Apart from the question how they were able to build those amounts in so little time without completely disregarding buildings (I was still beat to many wonders), I found out that there was only one civ apart from me that had more than 100 gold (it was Spain, so that doesn't count) and every civ had a negative GPT (-3 to -20). Now while I see that having less science per turn is their own problem, them being far superior in combat strength to a human player that does not pursue a domination victory it is logical that they declare war very often, making it impossible to play in a relatively peaceful way at all. So you basically have three options: a) always have a military that keeps you at negativ GPT b) always fight defensive wars that have negative impact on your production c) be aggressiv yourself I like neither of those.