sentences:  Even though Azerbaijan considers this land as occupied, the fact remains that for thousands of years, this region was occupied by Armenians, who are indigenous to the region.and has supported various indirect bilateral talks between Azerbaijan and Armenia and initiated trilateral dialogue in Reykjavik in 2002 and the Istanbul Summit, 2004 among the Ministers of Foreign Affairs of Turkey, Azerbaijan and Armenia in an attempt to resolve the ongoing conflict, but its diplomatic efforts are hampered by its own tensions with Armenia over the claim of Armenian Genocide and its ongoing border blockade against Armenia, which has resulted in subsequent infrastructure projects bypassing Armenian territory.Azerbaijan and Turkey have subsequently built upon their linguistic and cultural ties to form a very close economic partnership that sees Turkey negotiating to buy natural gas from Azerbaijan and the two co-operating, along with neighbouring Georgia, in such infrastructure projects as the Baku–Tbilisi–Ceyhan pipeline, the South Caucasus Pipeline, Kars-Tbilisi-Baku railway and the proposed Trans-Anatolian gas pipeline all of which bypassing Armenia despite a recent thawing in diplomatic relations between Ankara and Yerevan, which make them key players in European energy security.