In the management of this necessary reformation, Macrinus proceeded with a cautious prudence, which would have restored health and vigor to the Roman army in an easy and almost imperceptible manner. To the soldiers already engaged in the service, he was constrained to leave the dangerous privileges and extravagant pay given by Caracalla; but the new recruits were received on the more moderate though liberal establishment of Severus, and gradually formed to modesty and obedience. One fatal error destroyed the salutary effects of this judicious plan. The numerous army, assembled in the East by the late emperor, instead of being immediately dispersed by Macrinus through the several provinces, was suffered to remain united in Syria, during the winter that followed his elevation. In the luxurious idleness of their quarters, the troops viewed their strength and numbers, communicated their complaints, and revolved in their minds the advantages of another revolution. The veterans, instead of being flattered by the advantageous distinction, were alarmed by the first steps of the emperor, which they considered as the presage of his future intentions. The recruits, with sullen reluctance, entered on a service, whose labors were increased while its rewards were diminished by a covetous and unwarlike sovereign. The murmurs of the army swelled with impunity into seditious clamors; and the partial mutinies betrayed a spirit of discontent and disaffection that waited only for the slightest occasion to break out on every side into a general rebellion. To minds thus disposed, the occasion soon presented itself.