The "First Intifada or First Palestinian Intifada was a "Palestinian "uprising against the "Israeli "occupation of the "West Bank and "Gaza, which lasted from December 1987 until the "Madrid Conference in 1991, though some date its conclusion to 1993, with the signing of the "Oslo Accords. The uprising began on 9 December, in the "Jabalia "refugee camp after a traffic incident when an Israeli Defense Forces' (IDF) truck collided with a civilian car, killing four Palestinians. In the wake of the incident, a protest movement arose, involving a two-fold strategy of resistance and "civil disobedience, consisting of "general strikes, "boycotts of "Israeli Civil Administration institutions in the "Gaza Strip and the "West Bank, an economic "boycott consisting of refusal to work in "Israeli settlements on Israeli products, refusal to pay taxes, refusal to drive Palestinian cars with Israeli licenses, "graffiti, "barricading. The global diffusion of images of soldiers beating adolescents with clubs then led to the adoption of firing semi-lethal plastic bullets. In the intifada's first year, Israeli security forces killed 311 Palestinians, of which 53 were under the age of 17. Over the first two years, according to "Save the Children, an estimated 7% of all Palestinians under 18 years of age suffered injuries from shootings, beatings, or tear gas. Over six years the IDF killed an estimated 1,162–1,204 Palestinians. Between 23,600-29,900 Palestinian children required medical treatment from IDF beatings in the first 2 years. 100 Israeli civilians and 60 IDF personnel were killed often by militants outside the control of the Intifada’s "UNLU, and more than 1,400 Israeli civilians and 1,700 soldiers were injured. Intra-Palestinian violence was also a prominent feature of the Intifada, with widespread executions of an estimated 822 Palestinians killed as alleged Israeli "collaborators,(1988–April 1994). At the time Israel reportedly obtained information from some 18,000 Palestinians who had been compromised, although fewer than half had any proven contact with the Israeli authorities.