Ivory Coast has sent hundreds of soldiers to bolster security in its cocoa-growing west, but farmers caught up in simmering land disputes say that won't lure them back to fields they abandoned during years of conflict.The west of the world's top cocoa producer was the scene of some of the most violent clashes during and since a brief 2002-2003 war, in which rebels seized the north, dividing a country that was once the most stable in West Africa.