In foreign affairs, he resumed the policy of Egyptian intervention in the Middle East. As reported by Diodorus Siculus, in 396 BC he supported the Spartan king Agesilaus in his war against the Persians; the Spartans had conquered Cyprus and Rhodes and were attempting to extend their influence further east. Nepherites supplied the Spartans with 500,000 measures of grain and material for 100 triremes. However, the cargo reached Rhodes just after the Persians managed to retake the island, so it was entirely seized by the philo-Persian admiral Conon of Athens.