Greta Thunberg joins ‘largest solidarity mission in history’ to deliver aid amid worsening humanitarian crisis
Barcelona, Spain – A humanitarian flotilla carrying aid and international activists is preparing to set sail from Barcelona on Sunday in an effort to break Israel’s blockade of Gaza, which organisers describe as an “illegal siege”, starving civilians.
The initiative, coordinated by the Global Sumud Flotilla, says its vessels will attempt to open a humanitarian corridor to the besieged territory, where United Nations agencies have warned that half a million Palestinians face “catastrophic” hunger.
‘Largest solidarity mission in history’
“This will be the largest solidarity mission in history, with more people and more boats than all previous attempts combined,” Brazilian activist Thiago Avila told journalists in Barcelona.
Dozens of other ships are also expected to depart from Tunisia and other Mediterranean ports on September 4, while solidarity protests will take place in 44 countries worldwide.
The flotilla will include activists from multiple continents, European lawmakers, and public figures such as former Barcelona mayor Ada Colau. Portuguese MP Mariana Mortagua, who is taking part, insisted the mission is “entirely legal under international law”.
Why Greta Thunberg’s presence matters
Among those on board is Greta Thunberg, the 21-year-old Swedish climate activist who rose to global prominence as the face of the youth-led “Fridays for Future” movement. Named Time magazine’s Person of the Year in 2019 and nominated several times for the Nobel Peace Prize, she is one of the most recognisable activist figures worldwide.
Her decision to join the flotilla adds enormous international visibility to the mission. Thunberg has repeatedly condemned Western governments for what she calls their double standards – championing human rights in some regions while backing Israel’s war on Gaza.
This is her third attempt to reach Gaza by sea. In June, she was detained along with 11 others on the vessel Madleen when Israeli forces intercepted it 185km from Gaza’s coast. A month later, she joined another group aboard the Handala, which was also blocked.
By returning again despite previous detentions, Thunberg’s presence underscores the persistence of global civil society in confronting Israel’s blockade, linking the struggles for climate justice and Palestinian liberation.
Israel’s history of blocking aid
Israel has intercepted and expelled flotilla activists on multiple occasions, insisting on maintaining full control over what enters Gaza. Organisers say their efforts are independent of any government or political party, and the Arabic word Sumud – meaning “perseverance” – symbolises their determination to challenge Israel’s restrictions.
Previous flotilla missions, including the deadly Israeli raid on the Mavi Marmara in 2010 that killed 10 activists, have drawn widespread international condemnation of Israel’s tactics at sea.
Gaza’s humanitarian collapse
The latest attempt comes as Gaza faces what aid agencies describe as an unprecedented humanitarian collapse.
Since October, Israel’s war on Gaza has killed more than 63,371 Palestinians, most of them civilians, and wounded nearly 160,000, according to Gaza’s health ministry – figures the United Nations considers credible.
By comparison, 1,139 people were killed in Israel during the Hamas-led October 7 attacks, with around 200 taken captive.
Despite international appeals, Israel continues to block most aid trucks from entering Gaza. Jordan has resorted to airdropping food supplies, but even US Senators Chris Van Hollen and Jeff Merkley said Israel denied them permission to join one such aid flight and barred their entry into Gaza to “see first-hand the devastation”.
Widening regional fallout
The war has further destabilised the region. In Yemen, the Houthis vowed “vengeance” after confirming thier self-proclaimed Prime Minister Ahmed al-Rahawai and other cabinet members were killed in an Israeli strike on Sanaa.
Inside Gaza, Israeli forces are pressing deeper into northern Gaza City, forcing mass displacement. At least 20 Palestinians were killed across the strip on Saturday, including 13 people shot dead while waiting for aid distribution.
Defiance on the seas
For the activists sailing from Barcelona, the risks remain high. Past flotillas have been met with arrests, forced expulsions, and even violence. But organisers argue that the unprecedented scale of this mission – with dozens of ships, lawmakers, and high-profile figures – will make it harder for Israel to ignore.
“We are determined to deliver aid where governments have failed,” Thunberg wrote on Instagram. “This is about ending a genocide and standing with the Palestinian people.”
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