GAZA CITY, GAZA - MAY 31: Scores of Palestinians mark on Sunday the fifth anniversary of a deadly attack by the Israeli navy on a Turkish aid flotilla that sought to break the siege on the Gaza Strip in 2010. Ten activists were killed on board of the Turkish aid flotilla Mavi Marmara in May of 2010 when Israel's navy attacked the ship as it sought to break Gaza's blockade that has been in place since 2007. (Photo by Ashraf Amra/Anadolu Agency/Getty Images)
