Climate activist Greta Thunberg will join a large aid flotilla sailing to Gaza on Sunday to protest Israel's blockade. The flotilla, departing from Spain, includes hundreds of people from 44 countries and aims to deliver aid amidst a declared famine. Thunberg and other activists previously attempted this, resulting in detention and deportation. Israel maintains the blockade is necessary for security reasons, while critics call it collective punishment.

Prepared by Rachel Morgan and reviewed by editorial team.