My apologies if this gets long-winded, and if it's in the wrong place. Had this situation turn up in one of my games and wanted some feedback:
It's a 4-man escalating game, Pearl Harbor, and one of the players (yellow) had probably taken half the map. The blue player posted, "need help with yellow please, or we all lose"--a pretty clear assessment of the situation. So, I offered a 3-round truce prior to my turn in Round 7. Blue didn't respond in the chat, but did continue to attack yellow and only yellow, while I did the same.
Fast forward to Round 9 ... I knock out green to get his cards, cash in two sets, and take out a bunch of yellow's armies. Blue follows by busting most of yellow's remaining bonuses; yellow retaliates with a set of his own and has things at best even between me and him after the round. But at this point, it's unclear--at least to me--who's really in a better position.
So, when my turn comes around in Round 10, after the three rounds have passed, I see that I've got an opportunity to win the game by knocking out blue, taking his cards, and using the resulting set to cripple yellow. I try to do so, fail by leaving one blue army in play, and the next thing I know, blue regains his ability to use the game chat and I'm a "backstabbing bastard" who's going on his ignore list. (Incidentally, the game's still going on--blue had a set, and he obviously wants nothing more than for me to lose at this point.)
Now (finally), here's my question: was I wrong? Blue's perspective is that I should have been able to "read the game" and know that he wasn't after me, and that I apparently should have known that he would never just turn on me and would have offered a warning first. That's the way I've always ended announced truces--let each player take a round at the end of the truce to set up their previously undefended borders and then begin attacking. But, given that he never explicitly responded to my offer, I wasn't sure if we really had a truce or not, and having never played with the guy before, I had no clue if he was going to turn on me if he felt I was in a stronger position and therefore more worthy of attack.
So, did I screw up? Would people have handled this differently, and if so, how?