I'm using ArcGIS 10. I have a shapefile containing thousands of polygons. I have to merge the adjacent polygons, not based on any attribute but just merge all polygons that share a border. Is there any way to do so? I have considered 'dissolve' but for that I need to specify an attribute based on which the polygons will be dissolved (however in my case there is no attribute to base it on) and for 'eliminate' I must select the polygons to be merged but that is not possible as I have hundreds of such polygons. Can you suggest a solution please?