Then followed a short conversation between the generals. While Corbulo complained that his efforts had been fruitless and that the war might have been ended with the flight of the Parthians, Pætus replied that for neither of them was anything lost, and urged that they should reverse the eagles, and with their united forces invade Armenia, much weakened, as it was, by the departure of Vologeses. Corbulo said that he had no such instructions from the emperor; it was the peril of the legions which had stirred him to leave his province, and, as there was uncertainty about the designs of the Parthians, he should return to Syria, and, even as it was, he must pray for fortune under her most favourable aspect in order that the infantry, wearied out with long marches, might keep pace with the enemy's untiring cavalry, certain to outstrip him on the plains, which facilitated their movements. Pætus then went into winter quarters in Cappadocia. Vologeses, however, sent a message to Corbulo, requiring him to remove the fortresses on the further bank of the Euphrates, and to leave the river to be, as formerly, the boundary between them. Corbulo also demanded the evacuation of Armenia by the garrisons posted throughout it. At last the king yielded, all the positions fortified by Corbulo beyond the Euphrates were destroyed, and the Armenians too left without a master.