I think this has got to be a first. The Israeli Defense Force used Twitter to sell folks that they've launched a new campaign to rid themselves of folks who fired rockets and missiles at Israel. Which ever side you come down on, this is probably a first for Twitter.
Twitter has been used telling folks that they're on the toilet, birth of a child, link to an interesting post, or even start revolutions across North Africa. But a war?
Source: IDF Twitter.