After the establishment of the Israeli army, the Palmach was reorganised into three IDF brigades—the Negev Brigade, the Yiftach Brigade, and the Harel Brigade. The Negev and Yiftah Brigades fought in the Negev against the Egyptian army and managed to stop and later repulse it into the Gaza Strip and Sinai. The Yiftah Brigade was later transferred to the north. The Harel Brigade was centered on Jerusalem. The merging of the Palmach into the Israeli army involved a series of power struggles with Ben-Gurion, known as The Generals' Revolt. In 1949 many senior members of the Palmach resigned from the army.