On Feb. 15, 2003, as millions of people worldwide took to the streets to protest the imminent U.S. invasion of Iraq, Marine Lance Cpl. Michael Hoffman was in Kuwait, awaiting deployment to Baghdad. Two years later, Hoffman, 25, is a civilian on the lecture circuit, introducing himself as an Iraq Veteran Against the War. On March 19, when war opponents plan to converge near Fort Bragg in Fayetteville, N.C., to mark the date of the invasion, Hoffman, who co-founded the Iraq veterans group, will be one of the lead speakers. - - - "It's not enough for us to say,...