Complex sentence: The authors believe that IDF service provides potential entrepreneurs with the opportunities to develop a wide array of skills and contacts as well as experience exerting responsibility in a relatively unhierarchical environment where creativity and intelligence are highly valued.
Split into simpler sentences: The authors believe that IDF service provides potential entrepreneurs with the opportunities to develop a wide array of skills and contacts. They also believe that IDF service provides experience exerting responsibility in a relatively unhierarchical environment where creativity and intelligence are highly valued.