I've never actually seen this before (in years of playing CivIII).
The pesky but backward Egyptians inexplicably attacked and took from me a city on a small island (which had been defended by a lone spearman; the city had been ceded to me from the Celts as a spoil of war).
While the bulk of my forces sped toward Egypts homeland with divine retribution on the agenda, I sent a small force fo three Knights to retake the pilfered city (not that I really wanted it, but you know how it is).
Finally, after ten turns or so, the Knights reached the island, and prepared to take the city from the clearly visible Med. Infantry. The next turn, as my Knights prepare to invade the city, I was shocked to discover that the Medieval Infantry was no longer in the city. With no ships, and no escape routes (my three knights cut off the only way out of the city by land), the Egyptian unit had just vanished.
Had the AI simply surrendered?
The pesky but backward Egyptians inexplicably attacked and took from me a city on a small island (which had been defended by a lone spearman; the city had been ceded to me from the Celts as a spoil of war).
While the bulk of my forces sped toward Egypts homeland with divine retribution on the agenda, I sent a small force fo three Knights to retake the pilfered city (not that I really wanted it, but you know how it is).
Finally, after ten turns or so, the Knights reached the island, and prepared to take the city from the clearly visible Med. Infantry. The next turn, as my Knights prepare to invade the city, I was shocked to discover that the Medieval Infantry was no longer in the city. With no ships, and no escape routes (my three knights cut off the only way out of the city by land), the Egyptian unit had just vanished.
Had the AI simply surrendered?