I'm playing my first deity game and I'm chugging along okay. The problem I'm having right now is that I want to expand my territory via war, but as soon as I declare war (on the Dutch) my gpt goes up by about 50 gpt (even though I have no trade agreements with them) and now no other civs will trade with me on a gpt basis. I'm sure there's a reasonable explanation for this, I'd just like to know what it is. Thanks in advance for any replies.
Edit: I should add that if I don't declare war, the same refusal for gpt agreements happens a few turns later, when all of a sudden my per turn agreements with 2/3 of my trading partners are cancelled and I'm no longer able to trade with that same 2/3. When I attempt to make a gpt agreement, I am blamed for welching on a deal with one of my former trading partners.
Edit: I should add that if I don't declare war, the same refusal for gpt agreements happens a few turns later, when all of a sudden my per turn agreements with 2/3 of my trading partners are cancelled and I'm no longer able to trade with that same 2/3. When I attempt to make a gpt agreement, I am blamed for welching on a deal with one of my former trading partners.