Some people spend an entire lifetime wondering if they've made a difference.
The Marines don't have that problem. On one side is the Marine Corps. On the other is the Air Force. The Air Force Memorial Foundation plans to build a 50-foot memorial down the hill overlooking the capital's monuments. But a group of Marines, active and retired, along with other supporters, have come together in a grass-roots organization called the Friends of Iwo Jima and are collecting petitions and asking lawmakers to stop construction of the Air Force monument, which will begin when the money is raised, probably 1999.