Once again, antiwar protesters rallying in Rowan Park on Saturday will be met by a smaller but fervent group of pickets who support the war. Yet if the pickets had gotten their way, it would be them — not the antiwar crowd — filling the park on the third anniversary of the Iraq invasion. A member of Free Republic, a support-the-war group, reserved Rowan Park for this weekend immediately after last year’s large antiwar rally at the park. The reservation was described as for a two-day picnic and required an $800 check covering fees and a deposit.