Agis, upon his return to Sparta, finds…

Ptolemy manages to keep Ephesus, in Asia Minor, and several coastal areas in Thrace by the peace terms of the Third Syrian War, concluded in 241.

The Ptolemid forces are expelled from Mesopotamia and …

…part of North Syria in 242-241 BCE; …

…the Seleucids also recover the nearer provinces of Iran.

Antiochus Hierax, the younger brother of Seleucus II, had been sent as ruler to Seleucid Anatolia, where their mother Laodice is living.

Perhaps in league with his mother, late in the war with Egypt he sends an army into Syria ostensibly to assist Seleucus but actually to seize the rest of the empire.

The appearance of Hierax' troops, however, brings peace between Egypt and his brother.

By the peace terms of the Third Syrian War, concluded in 241, Ptolemy manages to keep the Orontes River region (Seleucia Pieria) and Antioch, both in Syria; and …

…perhaps also some coastal areas in Cilicia.

Pergamon, originally a mountain fortress on the Aegean coast, has become an important continental power through the careful maneuvering of its rulers, Philetaerus (282-263) and later his nephew Eumenes (263-241).

Attalus, whose mother, Antiochis, is a princess of the Seleucid house, in 241 succeeds his uncle Eumenes.

Ptolemaic Egypt controls much of southern Asia Minor and Syria, as well as some Aegean ports, by the end of the war in 241 BC.

…Messenia.

Agis now begins to carry out the cancellation of debts while delaying the redistribution of land, but is called away from Sparta in 241 when Aratus of Sicyon, temporarily Sparta's ally, requests aid in one of his wars.