The current crisis in Gaza was triggered by the Hamas takeover of the Gaza Strip in June 2007 and the unprecedented blockade imposed by Israel. The blockade marked the peak of a gradual process of isolation that started in the early 1990s with the imposition of a general closure, which forced Gazans to obtain special permits to leave the Gaza Strip. Now in its third year, the blockade has resulted in a degradation in the living conditions of the entire population. Approximately 120,000 jobs have been lost as a result of severe import restrictions and an almost total prohibition on exports. Three-quarters of the population is affected by poverty and food insecurity. Access restrictions have also led to a steady decline in the infrastructure and the quality of services in vital sectors such as health, water and sanitation and education.