The goal of a word war is to compete to see who among a group of writers can write the most words in a set amount of time. My favorite length of time to war is 15 minutes, but I've seen people war for as short as five minutes and as long as a whole hour.
Do any of you participate in Word Wars? How do you stay motivated to write?
If you're ever looking for a word war buddy, just let me know! I hang out on the NaNoWriMo site frequently in the evenings (ET).