Although Turkey and Israel did not establish full diplomatic relations until <answer>1991</answer>, Turkey has cooperated with the State since its recognition of Israel in 1949. Turkey's ties to the other Muslim-majority nations in the region have at times resulted in pressure from Arab and Muslim states to temper its relationship with Israel. Relations between Turkey and Israel took a downturn after the 2008–09 Gaza War and Israel's raid of the Gaza flotilla. IHH, which organized the flotilla, is a Turkish charity that has been challenged on ties to Hamas and Al-Qaeda. Relations between Israel and Greece have improved since 1995 due to the decline of Israeli-Turkish relations. The two countries have a defense cooperation agreement and in 2010, the Israeli Air Force hosted Greece’s Hellenic Air Force in a joint exercise at the Uvda base. Israel is the second largest importer of Greek products in the Middle East. The joint Cyprus-Israel oil and gas explorations centered on the Leviathan gas field are an important factor for Greece, given its strong links with Cyprus. Cooperation in the world's longest sub-sea electric power cable, the EuroAsia Interconnector, has strengthened relations between Cyprus and Israel.
When did Turkey and Israel establish full diplomatic relations?
1991