CaptionBoys raise toy guns in a gesture of defiance. The Palestinian uprising, which began in December 1987, strengthened the Arab population in their determination to fight the occupying force. In March Israel closed its border with Gaza, causing a massive rise in unemployment. With more than 800,000 people contained in the Israeli-patrolled, eight-km-wide strip of land, bloodshed increased sharply. The peace agreement signed in Washington on September 13 promised limited authority for the Gaza Strip and a withdrawal of the Israeli army.