"No humanitarian aid on Mavi Marmara" refers to the controversial incident that occurred on May 31, 2010, when Israeli forces intercepted a Turkish ship, the Mavi Marmara, attempting to deliver aid to the Gaza Strip. The Israeli government claimed that the ship was carrying weapons and therefore posed a security threat, while those on board the ship claimed they were only carrying humanitarian aid.
The Israeli government claimed that they had a naval blockade in place around the Gaza Strip and that the Mavi Marmara was attempting to break this blockade. They also claimed that the ship was carrying weapons and posed a security threat, which is why they did not allow any humanitarian aid on board.
Yes, there were casualties on both sides. Nine Turkish activists were killed and several Israeli soldiers were injured. The exact circumstances of these casualties are still disputed.
The incident sparked international outcry and condemnation, with many countries and organizations calling for an independent investigation into the events. The United Nations issued a statement expressing concern and calling for a full investigation.
In 2013, Israel issued an official apology to Turkey for the incident and agreed to pay compensation to the families of the victims. However, the issue of the blockade and the legality of Israel's actions is still a subject of debate and tension between the two countries.