Maybe put a white flag on all cities when ppl are in WR lol I know it adds to the game and part of the strategy, but sub warping is annoying when they in WR when u arrive lol
I have faced this a lot, and it's annoying but part of the game. I don't even know how many times this has happened, followed by me sending a letter and then us both laughing about it. It's part of the risk of warping.