The three allies had attained Getting a number of their military objectives , but the canal was useless .

By this time the grand inner harbor had silted up and was useless , however the Emperor Anastasius had reconstructed Recovering the outer harbor and Caesarea remained an important maritime city , providing Giving the Persian Empire with access Having_or_lacking_access to the Mediterranean Sea .

The numbers and dispositions of the Austrians convinced Convincing him that any attack Attack would be useless , and that he could not hope Coming_to_believe to maintain Preserving his position in the heights .