While one Israeli general proposed capturing Beirut, which he claimed could be done in twelve hours, Israel's Prime Minister David Ben-Gurion refused permission. The armistice agreement between Lebanon and Israel[12] was relatively straightforward. Unlike the other armistice agreements, there was no clause disclaiming the Blue Line as the international border between Lebanon and the former British Mandate of Palestine (unrelated to the now government of Palestine) continued to be treated as the de jure international border.