Jerusalem: The forgotten fort By Efraim Inbar (January 8) - The heated debates over the fate of Jerusalem revolve around the religious and historic importance of the city for the Jewish people and the symbolic significance of dividing it and of relinquishing sovereignty over the Temple Mount. Surprisingly, the security implications of Prime Minister Ehud Barak's concessions to the Palestinians regarding Jerusalem, as reported in the press, have gone almost unnoticed. In Israeli strategic parlance, security problems are usually divided into two distinct categories: basic and current security. Basic security refers to challenges to Israel's existence and/or to its territorial integrity. Current security threats refer to issues affecting the routine life of Israelis inside Israel and/or along its borders. On both accounts, the current government's positions on Jerusalem pose grave security problems. One important basic security challenge is defending Israel from a large-scale conventional attack from the east. Jerusalem is an exceptionally important component in such a defensive posture, which requires an ability for a rapid movement of troops from the coast - the location of the main concentrations of Israel's population and reserve units - eastward to the Jordan valley. For this precise reason Israel has built the Trans-Samaria Highway, in addition to the highways to Jerusalem that continue via Ma'aleh Adumim to the Jordan Valley. Even if Israel holds on to the right of access to the Jordan Valley through Palestinian territory, in times of emergency, the exercise of this right might be hindered by violent Palestinian opposition. The only lateral axis from the coast to the Jordan Valley which is populated by Jews in great numbers and therefore more defensible is via Jerusalem. The only area along the crest of the mountains at the center of the Land of Israel, which is heavily populated by Jews, is Jerusalem and its surroundings. These facts increase the strategic importance of the city, as well as the need to control its environs. Jerusalem is the most important junction for moving forces along the west-east or north-south axis. By allowing Palestinian control over parts of Jerusalem and areas in its vicinity, Israel loses the ability to move forces freely in an emergency. That gives the Palestinians the capacity to hinder movements of forces when speed is vital for successfully repelling an attack from the east. Therefore, holding on to Greater Jerusalem, particularly when other areas of importance for moving troops to the eastern front are planned to be handed over to the Palestinians, is a strategic imperative for maintaining the basic security for Israel. In terms of current security, the division of security control along ethnic lines in Jerusalem amounts to turning the holy city into a Belfast. It will enable snipers to shoot into Jewish neighborhoods, in the heart of Jerusalem. It would be sheer folly to believe that a Palestinian policeman would put much effort into preventing such an act and hunting down the perpetrator. We already had a taste of the proximity of Palestinian sovereignty to Jerusalem in the neighborhood of Gilo. The government was reluctant to respond forcefully to terrorists acting in areas which are fully under Palestinian control in order not to bring about an escalation. The same rationale could apply to attacks on the Jewish Quarter from a Moslem Quarter under Palestinian sovereignty. The fact that Jerusalem attracts much media attention could become an additional restraining factor in the Israeli decision-making process. Moreover, the existence of Palestinian safe havens within the city of Jerusalem would only increase the likelihood of ethnically motivated crime against Jews. The Palestinian Authority has a clear record of turning a blind eye to Palestinian criminals living within its territory while perpetrating criminal acts within Israel. In a divided city, life for Jews could become unbearable and encourage emigration. This definitely sits well with the Palestinian goal of making it an Arab city. Finally, relinquishing sovereignty in any part of historic Jerusalem erodes the legitimacy of the Zionist claims to build a Jewish state in the Land of Israel. The erosion of Israel's legitimacy has for years been a strategic goal of the Palestinian national movement. Such an erosion has a clear impact on the staying power of Israeli society in future conflicts of various magnitude. After all, even Barak admits that an agreement with the Palestinians would not eliminate the risks of armed conflict in the future. The perception that Israelis fight for a legitimate cause is a vital element in Israel's security equation. Dividing Jerusalem would probably further dilute the links of certain secular sectors to Jewish history. On the other hand, it would demoralize large segments of the traditional and religious elements within the Israeli population and would make them question their readiness to continue to bear the burden of fighting for the Jewish state. Therefore, social cohesion requires making good on the words of the national anthem, which ends with the hope of the return to Zion and Jerusalem. (The writer is the director of the Begin-Sadat Center for Strategic Studies at Bar-Ilan University.)