http://www.gatestoneinstitute.org/7857/israel-turkey-russia-egypt
In 2011, the UN Palmer Commission Report found the blockade of Gaza — jointly administered with Egypt — to be legal, and said Israel owed Turkey neither an apology nor compensation.
Lifting the Israel/Egypt embargo on Gaza would empower Hamas, and thereby the Muslim Brotherhood, Iran and ISIS — which would seem an enormous risk for no gain.
Turkish sources assert that Turkish-Israeli governmental relations are about to come out of the deep freeze. But this is a reflection of Turkey’s regional unpopularity and glides over Turkish demands for Israel to end the blockade of Gaza. To meet Turkey’s condition, Israel would have to abandon the security arrangement it shares with Egypt — which has increased Israel’s security and has begun to pay regional dividends. To restore full relations between Israel and Turkey would irritate Russia, with which Israel has good trade and political relations, and a respectful series of understandings regarding Syria. Israel’s relations with the Kurds are also at issue here.
After the 2010 Mavi Marmara flotilla — in which Turkey supported the Hamas-related Turkish organization, the IHH, in its effort to break the blockade of Gaza — Turkey made three demands of Israel: an Israeli apology for the deaths of Turkish activists; a financial settlement; and lifting the Gaza blockade, which Turkey claimed was illegal. The last would provide IHH with the victory it was unable to achieve with the flotilla.