Nearly two years of conflict and displacement have devastated Yemen, pushing the country toward social, economic and institutional collapse.29 Nearly 90 per cent of IDPs in Yemen have been displaced for more than 10 months, with scarce resources dwindling and humanitarian needs rising sharply in all sectors. 30 At the same time, more than a million people provisionally returned to their areas of origin, but the sustainability of their return is highly questionable. Nearly 70 per cent of returnees are in Aden, Sana’a or Taiz, where more than 85 per cent were reported to be living in their original homes. Substantial numbers were living in damaged buildings and faced serious protection risks.31 Under-reported: displacement by generalised violence Disaggregating new displacements associated with conflict and violence recorded in 2016 reveals that 88 per cent were triggered by active armed conflicts, six per cent by criminal violence, five per cent by political violence and one per cent by communal violence (see figure 1.7). People fled generalised violence in a number of forms, from gang violence in central America (see spotlight, p.22) to post-electoral violence in Burundi and Burkina Faso. Their movements are not however systematically monitored worldwide. This “unseen” flight has widespread repercussions for individuals and societies. Only the existence of an international or non-international armed conflict triggers the application of international humanitarian law (IHL), also known as the law of armed conflict.44 In practical terms, IHL sets limits on how the parties may conduct hostilities and protects all persons affected by the conflict, including humanitarian agencies responding to its effects. This means that although the consequences of generalised violence can be as devastating and deadly to the civilian population as those of an armed conflict, there is no special protection provided by IHL.45 There is far less information on people who flee criminal violence than on those displaced by conflict, and an even weaker response to their plight. Given the high rates of urban violence and homicide in some of the world’s major cities, many more people are probably displaced globally by this type of violence than the current data reflects.47 Figure 1.7: New displacement by conflict and violence in 2016, disaggregated by conflict type Dem. Rep. Congo Syria Iraq Afghanistan Nigeria Yemen India ARMED CONFLICT VIOLENCE - CRIMINAL VIOLENCE - POLITICAL VIOLENCE - COMMUNAL OTHER Source: IDMC Ethiopia South Sudan Philippines El Salvador Turkey Colombia Niger Libya Somalia Ukraine Sudan Cameroon Central African Republic Chad Myanmar Congo Mexico Uganda Burundi Honduras Mozambique Mali Guatemala Algeria Pakistan Palestine Burkina Faso Indonesia Papua New Guinea Lebanon ON THE GRID: Global internal displacement in 2016 21

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