Historians see the growing Roman influence over the east, as with the west, as not a matter of intentional empire-building, but constant crisis management narrowly focused on short-term goals within a highly unstable, unpredictable, and inter-dependent network of alliances and dependencies. With some major exceptions of outright military rule, the Roman Republic remained an alliance of independent city-states and kingdoms (with varying degrees of independence, both de jure and de facto) until it transitioned into the Roman Empire. It was not until the time of the Roman Empire that the entire Roman world was organized into provinces under explicit Roman control.