Complex sentence: Due to funding restrictions, however, nothing would come of these projects as well, leaving the role of a U.S. Navy ship-to-shore missile unfilled until the arrival of the BGM-109 Tomahawk during the 1980s.
Split into simpler sentences: Due to funding restrictions, however, nothing would come of these projects as well. However, this project also came to naught, leaving the role of a U.S. Navy ship-to-shore missile unfilled until the arrival of the BGM-109 Tomahawk during the 1980s.