Hundreds of activists are aboard the Global Sumud Flotilla with the intention to bring humanitarian aid to Gaza.
Archived version: https://archive.is/newest/https://www.dw.com/en/flotilla-with-greta-thunberg-on-board-sets-sail-for-gaza/a-73828282
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If she hasn’t mentioned it at all, I’d say it’s most likely she doesn’t have one.
People don’t tend to talk about things they’re not interested in.