The revolution and pacts (50).‘The Dirty Border War' (II). Background General Armistice Agreements (GAAs) (II). (Continued from last week). Nevertheless, with many ups and downs, this agreement was maintained for almost twenty years as a more or less effective framework regulating relations between the two states. The most difficult issue, one that triggered occasional violence, was the widespread infiltration of Palestinians (mostly 1948 refugees) across the armistice demarcation lines. These actions provoked Israeli retaliatory assaults and brought into question the viability of Article II of the agreement. Nevertheless, both sides were loath to destroy the foundations of their GAA and kept using its mechanisms for the exchange of mutual complaints and also for keeping the tenuous status quo alive. No-man's-lands designated by the GAA were divided by consent; the biweekly convoy to the Israeli enclave at the Hebrew University on Mount Scopus was permitted to supply the Israeli police force stationed there and replace the policemen regularly; the mutual vulnerability of citizens in Jerusalem induced both sides to keep the city's division lines quiet most of the time. Syria: The last agreement, the Syria - Israel GAA, was concluded after prolonged bickering and many delays. It was signed on July 20, 1949 near the Banat Ya'qub bridge on the Jordan River by Lt. Col. Makleff on behalf of Israel and Col. Fawzi Silo for the Syrians. Two main issues continued to obstruct the full implementation of this GAA: the status of the demilitarised zones and the use of the waters of the Jordan River and its tributaries. These issues eventually contributed to the main causes of the June 1967 Arab - Israel War and the conquest of the Golan Heights by Israeli forces. The Syria - Israel GAA provided for a number of stretches of land, previously held by the Syrian army, to be declared demilitarised zones. Sharp disagreement, often leading to violent measures, erupted from the outset regarding the status and disposition of these areas. Israel implemented several civilian projects in these zones without paying attention to the rights of the Arab landowners, while Syrian gunners shot at the operators of such projects, which they considered to be in violation of the GAA. Some of these clashes, especially in the 1960s, escalated into major flare-ups, including the engagement of artillery, armour, and air force. Negotiations on the sharing of the Jordan's waters in the early 1950s failed to achieve results, leaving Israel to press ahead to execute its own plan to divert a big part of these waters to the south of the country.