Philip was not willing to repeat the mistakes of previous claimants, and was aware that he had to return to Rome in order to secure his position with the senate. However, his first priority was to conclude a peace treaty with Shapur I of Persia, and withdraw the army from a potentially disastrous situation. Although Philip was accused of abandoning territory, the actual terms of the peace were not as humiliating as they could have been. Philip apparently retained Timesitheus’ reconquest of Osroene and Mesopotamia, but he had to agree that Armenia lay within Persia's sphere of influence. He also had to pay an enormous indemnity to the Persians of 500,000 gold denarii. Philip immediately issued coins proclaiming that he had made peace with the Persians ("pax fundata cum Persis").