A fragile state is a developing country characterized by weak state capacity or weak state legitimacy leaving citizens vulnerable to a range of shocks. The World Bank, for example, deems a country to be ‘fragile’ if it (a) is eligible for assistance (i.e., a grant) from the International Development Association (IDA) (b) has had a UN peacekeeping mission in the last three years, and (c) has received a ‘governance’ score of less than 3.2 (as per the Country Performance and Institutional Assessment (CPIA) index of The World Bank). A fragile state is a developing country characterized by weak state capacity or weak state legitimacy leaving citizens vulnerable to a range of shocks. The World Bank, for example, deems a country to be ‘fragile’ if it (a) is eligible for assistance (i.e., a grant) from the International Development Association (IDA) (b) has had a UN peacekeeping mission in the last three years, and (c) has received a ‘governance’ score of less than 3.2 (as per the Country Performance and Institutional Assessment (CPIA) index of The World Bank). While many countries are making progress toward achieving the Sustainable Development Goals, a group of 35 to 50 countries (depending on the measure used) are falling behind. It is estimated that out of the world's seven billion people, 26% live in fragile states, and this is where one-third of all people surviving on less than US$1.25 per day live, half of the world's children who die before the age of five, and one-third of maternal deaths occur. Not only are they falling behind, but the gap with other developing countries is widening since the 1970s. In 2006, per capita GDP grew only at 2% in fragile states, whereas it reached 6% in other low-income countries. Projections (for example, World Bank, 2008) that fragile states will constitute an even larger share of low-income countries in the future given that many better performing low-income countries graduate to middle-income status. This is a major challenge for development efforts and it has been argued by the Overseas Development Institute that fragile states require fundamentally different approaches from the development models exercised in more resilient countries, because of the different context of risk. One common measure of state fragility is to use the World Bank's Country Policy and Institutional Assessment index, but more complex indexes, for example including the security dimension, are increasingly being used. Country contexts vary widely in this group of countries ranging from Haiti to Nepal, from Uzbekistan to Burundi. Some are trapped in a vicious cycle of violent conflict and poverty or suffer from a natural resource 'curse'; others face a legacy of poor governance; many emerging from crisis cannot deliver even the most basic services to their citizens, such as the Democratic Republic of Congo. In terms of dynamics, fragile states include: A fragile state is significantly susceptible to crisis in one or more of its sub-systems. It is a state that is particularly vulnerable to internal and external shocks and domestic and international conflicts. Fragile states are not only evaluated by degree of fragility but also types of state fragility and threat they pose in to help policymakers to appropriate responses. In a fragile state, institutional arrangements embody and perhaps preserve the conditions of crisis: in economic terms, this could be institutions (importantly, property rights) that reinforce stagnation or low growth rates, or embody extreme inequality (in wealth, in access to property and land ownership, in access to the means to make a living); in social terms institutions may embody extreme inequality or lack of access altogether to health or education; in political terms, institutions may entrench exclusionary coalitions in power (in ethnic, religious, or perhaps regional terms), or extreme factionalism or significantly fragmented security organisations. In fragile states, statutory institutional arrangements are vulnerable to challenges by rival institutional systems be they derived from traditional authorities, devised by communities under conditions of stress that see little of the state (in terms of security, development or welfare), or be they derived from warlords, or other non-state power brokers. The opposite of a 'fragile state' is a 'stable state' – one where dominant or statutory institutional arrangements appear able to withstand internal and external shocks and contestation remains within the boundaries of reigning institutional arrangements. With the right conditions, some countries – such as Mozambique and Burundi – have so far demonstrated a remarkable turn-around. To address the challenge of these countries falling behind, the international spotlight must be kept on countries where the Millennium Development Goals are hardest to achieve, using common principles for action; making the international aid architecture more rational; improving the organisational response of the wide range of actors involved (including 'the 3Ds': diplomacy, defense and development); and measuring results. While there are no universal criteria to determine state fragility, the World Bank, through its LICUS programme (Low Income Countries Under Stress) and its Country Policy and Institutional Assessment (CPIA) Index, has been able to establish a preeminent frame of reference for donor countries and other institutional partners. Based on four clusters (including economic management, structural policies, policies for social inclusion/equity and Public Sector Management and institutions) as well as 16 indicators, the CPIA index rates state performance, with those countries scoring under 3.2 out of a total of 6 qualifying as 'fragile'. Such low performing countries may then be, in turn, suitable for the allocation of financial assistance from a variety of international actors such as the International Development Association and other, similar bodies.