When MSN was created in the mid-nineties, AOL, flush with cash, prepared for a fight to the death with Microsoft. The rallying cry at AOL around that time was

When MSN was created in the mid-nineties, AOL, flush with cash, prepared for a fight to the death with Microsoft. The rallying cry at AOL around that time was that "online services will be Microsoft's Vietnam." I believe it holds up as one of the best business metaphors of all time.