building and told to "Get on with it." Intelligence Corps NCOs then copied the map for distribution to the Truce Force units. Further copies of the map would then have been produced ‘in house’ for use by Truce Force patrols. The Green Line became impassable following the July 1974 Turkish invasion of Cyprus during which Turkey occupied approximately 37% of Cypriot territory, in response to a short-lived Greek Cypriot coup. A "security zone" was established after the Tripartite Conference of Geneva in July 1974. Pursuant to United Nations Security Council Resolution 353 of 1974, the foreign ministers of Greece, Turkey, and the United Kingdom convened in Geneva on 25 July 1974. According to UNFICYP, the text of the joint declaration transmitted to the Secretary-General of the United Nations was as follows: The UN Security Council then adopted the above declaration with Resolution 355. When the coup dissolved, the Turkish Armed Forces advanced to capture approximately 37% of the island and met the "Green Line". The meandering Buffer Zone marks the southernmost points that the Turkish troops occupied during the Turkish Invasion of Cyprus in August 1974, running between the ceasefire lines of the Cypriot National Guard and Turkish army that de facto divides Cyprus into two, cutting through the capital of Nicosia. With the self-proclamation of the internationally unrecognized "Turkish Republic of Northern Cyprus", the Buffer Zone became its de facto southern border. Traffic across the buffer zone was very limited until 2003, when the number of crossings and the rules governing them were relaxed. In March 2021 Cyprus erected a barbed wire fence on the Buffer Zone to curb illegal immigration. Sectors Sector One Starts at Kokkina exclave and covers approximately to Mammari, west of Nicosia. Since 16 October 1993, it has been the responsibility of the Argentinian Contingent with approximately 212 soldiers. Sector One Headquarters and Command Company are located in San Martin Camp, which is near Skouriotissa village. Support Company finds its home at Roca Camp, near Xeros in the north. The two line companies are deployed along four permanently manned patrol bases while also conducting mobile patrols from the San Martin and Roca camps. Sector Two Starts at Mammari, west of Nicosia and covers to Kaimakli, east of Nicosia. Since 1993, it has been the responsibility of the British contingent, which deploys using the name Operation TOSCA. Sector Three Sector 3 was patrolled by Canadian troops