With Sovereignty meaning holding supreme, independent authority over a region or state, Internal Sovereignty refers to the internal affairs of the state and the location of supreme power within it. A state that has internal sovereignty is one with a government that has been elected by the people and has the popular legitimacy. Internal sovereignty examines the internal affairs of a state and how it operates. It is important to have strong internal sovereignty in relation to keeping order and peace. When you have weak internal sovereignty, organisations such as rebel groups will undermine the authority and disrupt the peace. The presence of a strong authority allows you to keep agreement and enforce sanctions for the violation of laws. The ability for leadership to prevent these violations is a key variable in determining internal sovereignty. The lack of internal sovereignty can cause war in one of two ways: first, undermining the value of agreement by allowing costly violations; and second, requiring such large subsidies for implementation that they render war cheaper than peace. Leadership needs to be able to promise members, especially those like armies, police forces, or paramilitaries will abide by agreements. The presence of strong internal sovereignty allows a state to deter opposition groups in exchange for bargaining. It has been said that a more decentralized authority would be more efficient in keeping peace because the deal must please not only the leadership but also the opposition group. While the operations and affairs within a state are relative to the level of sovereignty within that state, there is still an argument over who should hold the authority in a sovereign state.