Activists from several countries are setting out on a converted trawler to defy an Israeli blockade and deliver humanitarian aid to Palestinians in the Gaza Strip."The purpose of this mission is to send a message that civil society is not OK with what's happening in Gaza," said Fellipe Lopes, the Portuguese media coordinator of the Freedom Flotilla Coalition on board the ship Handala during a stopover in Malta."We expect to encounter resistance throughout our mission," said Australian activist Michael Coleman."Ours is not an illegal activity in any shape or form.