Keir Starmer has previously argued Serbia waged genocide against Croatia

The British prime minister's argument, made while representing Croatia at the ICJ in 2014, prompts further scrutiny of his position on Gaza

In his legal argument that Serbia’s siege of Vukovar amounted to genocide, Starmer said the city was reduced to rubble, and endured a “sustained campaign of shelling, systematic expulsion, denial of food, water, electricity, sanitation and medical treatment”.