"impelled" and "forced" migration--the former referring to Migrants who retain the power to decide whether or not to leave and the latter when they do not nave that power. It should be apparent that a thin line separates the two conditions. Groups may have decision-making power but often conditions exist where there is no alternative but to move. Furthermore, groups might be led to believe that they have — decision-making rights when in fact the decision has already been made by an external agent, | | The function or purpose of movement must be an additional consideration in delineating between impelled and forced migration. A number of factors affects forced or involuntary movements of groups, 6 as follows: Groups may leave homelands simply because a dominant group no longer finds their presence desirable Rosenstock, 6 (cf. 1955). Internal strife and war often lead to forced movements of people either out of fear or political orientations (Zubrzycki, @ c 1959). Natural hazards eruptions, such as earthquakes, droughts, volcanic Or seismic tidal waves force groups to move to areas of safety and never return because of damage and destruction ® to property (cf. Ketch, 1961). Urban poor have been forced to move to make room for demolition of substandard housing and buildings under the promise that new housing will lead to improvements in lifestyles and neighborhood conditions 1963). as 1093 (cf. Fried,