Swedish climate activist Greta Thunberg will be onboard an aid flotilla that is set to leave Barcelona for Gaza. Photograph: Lluís Gené/AFP/Getty Images
Swedish climate activist Greta Thunberg will be onboard an aid flotilla that is set to leave Barcelona for Gaza. Photograph: Lluís Gené/AFP/Getty Images
Swedish climate and rights activist Greta Thunberg said aid flotillas to Gaza would not be necessary if governments fulfilled their duty to uphold international law.

Thunberg, 22, is set to join the Global Sumud Flotilla departing Barcelona on Sunday. She said it was the responsibility of governments to act to prevent war crimes and genocide, adding that their failure was a betrayal not only of Palestinians but of humanity.

The flotilla’s organizers say boats from around the world will converge on Gaza in a peaceful attempt to establish a humanitarian corridor and deliver aid. Brazilian activist Thiago Avila described the effort as “the largest solidarity mission in history.”

Two previous attempts in June and July were blocked by Israeli forces, who boarded the ships and expelled activists, including Thunberg. The organizers have not disclosed the exact timing or number of vessels departing Barcelona.

The mission comes after the UN declared famine in Gaza on August 22, blaming Israel’s obstruction of aid — an accusation denied by Israeli authorities.