Prince William has publicly called for an end to the fighting in Gaza in an unusually political move for a member of the British royal family.
Brazil's President Luiz Inacio Lula da Silva is also topping today's social trends amid a diplomatic row with Israel following comments he made comparing the Gaza war to the Holocaust.
Hamas has condemned the US's decision to veto an Arab-backed resolution for a Gaza ceasefire presented by the UN Security Council.
